{"id":1075,"date":"2021-10-08T13:10:36","date_gmt":"2021-10-08T13:10:36","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=1075"},"modified":"2022-02-21T19:40:37","modified_gmt":"2022-02-21T12:40:37","slug":"giai-bat-phuong-trinh-chua-dau-gia-tri-tuyet-doi-hoc-tot-toan-8","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/giai-bat-phuong-trinh-chua-dau-gia-tri-tuyet-doi-hoc-tot-toan-8\/","title":{"rendered":"Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i \u2013 H\u1ecdc t\u1ed1t to\u00e1n 8"},"content":{"rendered":"\n<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p>D\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u00e0 m\u1ed9t ki\u1ebfn th\u1ee9c r\u1ea5t quen thu\u1ed9c trong To\u00e1n h\u1ecdc v\u00e0 c\u00e1ch gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u0169ng l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng kh\u00f4ng k\u00e9m c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh h\u1ecdc. V\u1eady th\u1ebf n\u00e0o l\u00e0 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh c\u00f3 ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i v\u00e0 c\u00e1ch gi\u1ea3i \u0111\u1ed1i v\u1edbi lo\u1ea1i ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y l\u00e0 g\u00ec? C\u00f9ng Vietlearn t\u00ecm hi\u1ec3u ngay qua b\u00e0i vi\u1ebft sau \u0111\u00e2y nh\u00e9.<\/p>\n\n\n\n<p>L\u00fd thuy\u1ebft t\u1ed5ng quan v\u1ec1 ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<\/p>\n\n\n\n<p>Tr\u01b0\u1edbc ti\u00ean, h\u00e3y c\u00f9ng Vietlearn \u0111\u1ebfn v\u1edbi nh\u1eefng l\u00fd thuy\u1ebft t\u1ed5ng quan v\u1ec1 ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i nh\u00e9.<\/p>\n\n\n\n<p>L\u00fd thuy\u1ebft v\u1ec1 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<\/p>\n\n\n\n<p>Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u00f2n \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 m\u00f4\u0111un c\u1ee7a s\u1ed1 th\u1ef1c a. Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a s\u1ed1 a \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 |a| v\u00e0 trong to\u00e1n h\u1ecdc, gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a a s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a nh\u01b0 sau:<\/p>\n\n\n\n<p>|a| = a khi a \u2265 0<\/p>\n\n\n\n<p>|a| = -a khi a &lt; 0<\/p>\n\n\n\n<p>Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a s\u1ed1 0 \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 |0| v\u00e0 |0| = 0. Hi\u1ec3u theo c\u00e1ch \u0111\u01a1n gi\u1ea3n, gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a m\u1ed9t s\u1ed1 ngh\u0129a l\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb s\u1ed1 \u0111\u00f3 \u0111\u1ebfn 0. Do \u0111\u00f3, gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a s\u1ed1 d\u01b0\u01a1ng l\u00e0 ch\u00ednh b\u1ea3n th\u00e2n s\u1ed1 \u0111\u00f3, gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a s\u1ed1 \u00e2m ch\u00ednh l\u00e0 s\u1ed1 \u0111\u1ed1i c\u1ee7a s\u1ed1 \u0111\u00f3.<\/p>\n\n\n\n<p>T\u00ednh ch\u1ea5t c\u1ee7a gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<\/p>\n\n\n\n<p>Ti\u1ebfp theo, h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u \u0111\u1ebfn nh\u1eefng t\u00ednh ch\u1ea5t c\u1ea7n bi\u1ebft c\u1ee7a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i nh\u00e9.<\/p>\n\n\n\n<p>Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i t\u1ea1i t\u1ea5t c\u1ea3 m\u1ecdi s\u1ed1 \u0111\u1ec1u s\u1ebd kh\u00f4ng \u00e2m.<\/p>\n\n\n\n<p>Hai s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb b\u1eb1ng nhau ho\u1eb7c 2 s\u1ed1 \u0111\u1ed1i v\u1edbi nhau tr\u00ean tr\u1ee5c s\u1ed1 s\u1ebd c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i b\u1eb1ng nhau. T\u01b0\u01a1ng t\u1ef1, hai s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i b\u1eb1ng nhau th\u00ec s\u1ebd l\u00e0 2 s\u1ed1 b\u1eb1ng nhau ho\u1eb7c l\u00e0 2 s\u1ed1 \u0111\u1ed1i nhau tr\u00ean tr\u1ee5c s\u1ed1.<\/p>\n\n\n\n<p>M\u1ecdi s\u1ed1 \u0111\u1ec1u s\u1ebd c\u00f3 gi\u00e1 tr\u1ecb l\u1edbn h\u01a1n ho\u1eb7c b\u1eb1ng v\u1edbi s\u1ed1 \u0111\u1ed1i c\u1ee7a gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a b\u1ea3n th\u00e2n s\u1ed1 \u0111\u00f3, \u0111\u1ed3ng th\u1eddi s\u1ebd nh\u1ecf h\u01a1n ho\u1eb7c b\u1eb1ng v\u1edbi gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a s\u1ed1 \u0111\u00f3.<\/p>\n\n\n\n<p>Trong 2 s\u1ed1 \u00e2m, s\u1ed1 n\u00e0o c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i nh\u1ecf h\u01a1n s\u1ebd l\u00e0 s\u1ed1 l\u1edbn h\u01a1n. Ng\u01b0\u1ee3c l\u1ea1i, trong 2 s\u1ed1 d\u01b0\u01a1ng, s\u1ed1 n\u00e0o c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i nh\u1ecf h\u01a1n s\u1ebd l\u00e0 s\u1ed1 nh\u1ecf h\u01a1n.<\/p>\n\n\n\n<p>Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a th\u01b0\u01a1ng s\u1ebd l\u00e0 th\u01b0\u01a1ng c\u1ee7a 2 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i. T\u01b0\u01a1ng t\u1ef1, gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a m\u1ed9t t\u00edch s\u1ebd b\u1eb1ng t\u00edch c\u1ee7a 2 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i.<\/p>\n\n\n\n<p>B\u00ecnh ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i b\u1eb1ng v\u1edbi b\u00ecnh ph\u01b0\u01a1ng c\u1ee7a ch\u00ednh s\u1ed1 \u0111\u00f3.<\/p>\n\n\n\n<p>T\u1ed5ng c\u1ee7a 2 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i s\u1ebd lu\u00f4n lu\u00f4n l\u1edbn h\u01a1n ho\u1eb7c b\u1eb1ng v\u1edbi gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a t\u1ed5ng 2 s\u1ed1 \u0111\u00f3.<\/p>\n\n\n\n<p>D\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ea5t nhi\u1ec1u trong l\u0129nh v\u1ef1c To\u00e1n h\u1ecdc, bao g\u1ed3m \u0111\u1ed1i v\u1edbi c\u00e1c h\u00e0m to\u00e1n, nh\u1eefng s\u1ed1 ph\u1ee9c, tr\u01b0\u1eddng v\u00e0 vecto,\u2026 gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u00e0 ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng m\u00e0 b\u1ea5t c\u1ee9 <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> n\u00e0o c\u0169ng c\u1ea7n ph\u1ea3i bi\u1ebft.<\/p>\n\n\n\n<p>Nh\u1eefng t\u00ednh ch\u1ea5t c\u1ee7a gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<\/p>\n\n\n\n<p>Th\u1ebf n\u00e0o l\u00e0 ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i?<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u00e0 ph\u01b0\u01a1ng tr\u00ecnh \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng |f(x)| = |g(x)| ho\u1eb7c |f(x)| = g(x). B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u00f3 2 d\u1ea1ng c\u01a1 b\u1ea3n l\u00e0 |f(x)| &gt; |g(x)| v\u00e0 |f(x)| &gt; g(x).<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbp 8 l\u00e0 nh\u1eefng <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n<\/a> nh\u1ea5t v\u1ec1 d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i d\u00e0nh cho <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a>. N\u1eafm \u0111\u01b0\u1ee3c c\u00e1ch gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i, c\u00e1ch gi\u1ea3i BPT mang d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i s\u1ebd gi\u00fap cho b\u1ea1n gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c nhi\u1ec1u v\u1ea5n \u0111\u1ec1 li\u00ean quan \u1edf c\u00e1c b\u00e0i to\u00e1n ph\u1ee9c t\u1ea1p h\u01a1n.<\/p>\n\n\n\n<p>Quy tr\u00ecnh v\u00e0 c\u00e1ch gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<\/p>\n\n\n\n<p>Quy tr\u00ecnh gi\u1ea3i BPT ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<\/p>\n\n\n\n<p>B\u01b0\u1edbc 1: Sau khi ph\u00e2n t\u00edch \u0111\u1ec1 b\u00e0i, c\u00e1c b\u1ea1n c\u1ea7n ph\u1ea3i \u00e1p d\u1ee5ng nh\u1eefng \u0111\u1ecbnh ngh\u0129a v\u1ec1 d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i \u0111\u1ec3 lo\u1ea1i b\u1ecf \u0111i d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i trong b\u00e0i to\u00e1n.<\/p>\n\n\n\n<p>B\u01b0\u1edbc 2: Gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh \u0111\u00e3 \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf \u0111i d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i.<\/p>\n\n\n\n<p>B\u01b0\u1edbc 3: Sau khi gi\u1ea3i ra \u0111\u01b0\u1ee3c nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, ch\u00fang ta s\u1ebd k\u1ebft h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 ch\u1ecdn nghi\u1ec7m th\u00edch h\u1ee3p nh\u1ea5t d\u00e0nh cho ph\u01b0\u01a1ng tr\u00ecnh \u0111ang \u0111\u01b0\u1ee3c x\u00e9t.<\/p>\n\n\n\n<p>B\u01b0\u1edbc 4: K\u1ebft lu\u1eadn \u0111\u00e1p \u00e1n c\u1ee7a b\u00e0i to\u00e1n.<\/p>\n\n\n\n<p>Quy tr\u00ecnh gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<\/p>\n\n\n\n<p>\u0110\u1ec3 kh\u1eed d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i, c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng 3 c\u00e1ch sau \u0111\u00e2y:<\/p>\n\n\n\n<p>S\u1eed d\u1ee5ng \u0111\u1ecbnh ngh\u0129a c\u1ee7a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i, t\u00ednh ch\u1ea5t c\u1ee7a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i.<\/p>\n\n\n\n<p>B\u00ecnh ph\u01b0\u01a1ng 2 v\u1ebf trong b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i.<\/p>\n\n\n\n<p>\u0110\u1eb7t \u1ea9n ph\u1ee5 \u0111\u1ec3 gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh.<\/p>\n\n\n\n<p>C\u00e1ch gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<\/p>\n\n\n\n<p>\u0110\u1ec3 gi\u1ea3i BPT c\u00f3 d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i, tr\u01b0\u1edbc ti\u00ean c\u1ea7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea1ng c\u01a1 b\u1ea3n, bao g\u1ed3m:<\/p>\n\n\n\n<p>D\u1ea1ng 1: |f(x)| &gt; |g(x)|<\/p>\n\n\n\n<p>D\u1ea1ng 2: |f(x)| &gt; g(x)<\/p>\n\n\n\n<p>D\u1ea1ng 3: |f(x)| &lt; g(x)<\/p>\n\n\n\n<p>Khi gi\u1ea3i d\u1ea1ng b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y, ch\u00fang ta s\u1eed d\u1ee5ng 3 ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh, bao g\u1ed3m kh\u1eed c\u0103n b\u1eb1ng \u0111\u1ecbnh ngh\u0129a, ph\u01b0\u01a1ng ph\u00e1p l\u1eadp b\u1ea3ng v\u00e0 ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<\/p>\n\n\n\n<p>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p kh\u1eed c\u0103n b\u1eb1ng \u0111\u1ecbnh ngh\u0129a<\/p>\n\n\n\n<p>|f(x)| = f(x) khi f(x) &gt; 0.<\/p>\n\n\n\n<p>|f(x)| = -f(x) khi f(x) &lt; 0.<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p l\u1eadp b\u1ea3ng<\/p>\n\n\n\n<p>\u0110\u1ec3 kh\u1eed gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i khi gi\u1ea3i BPT c\u00f3 ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i b\u1eb1ng c\u00e1ch l\u1eadp b\u1ea3ng, ch\u00fang ta c\u1ea7n ph\u1ea3i k\u1ebft h\u1ee3p b\u1ea3ng x\u00e9t d\u1ea5u nh\u1ecb th\u1ee9c b\u1eadc nh\u1ea5t c\u00f9ng tam th\u1ee9c b\u1eadc hai.<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/p>\n\n\n\n<p>B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh |f(x)| &gt; |g(x)| (f(x))2 &gt; (g(x))2.<\/p>\n\n\n\n<p>B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh |f(x)| &gt; |g(x)| g(x) &lt; 0 ho\u1eb7c [g(x) 0 v\u00e0 f2(x) &gt; g2(x)].<\/p>\n\n\n\n<p>B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh |f(x)| &gt; |g(x)| g(x) &gt;0 v\u00e0 f(x)2 &lt; [g(x)]2.<\/p>\n\n\n\n<p>B\u00e0i vi\u1ebft tr\u00ean \u0111\u00e3 t\u1ed5ng h\u1ee3p nh\u1eefng <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n<\/a> v\u1ec1 d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i, c\u0169ng nh\u01b0 c\u00e1ch gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i. \u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam nh\u1eefng ki\u1ebfn th\u1ee9c m\u1edbi, h\u00e3y truy c\u1eadp ngay v\u00e0o trang web Vietlearn.org\/ nh\u00e9.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>B\u1ea5t ph\u01b0\u01a1ng trinh m\u1ed9t \u1ea9n<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng tr\u00ecnh quy v\u1ec1 ph\u01b0\u01a1ng tr\u00ecnh<\/p>\n\n\n\n\n\n<div style=\"display:none\">\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\ngi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\ngi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbp 10\t<br>\nchuy\u00ean \u0111\u1ec1 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nc\u00e1ch gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a \u1ea9n trong d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nc\u00e1ch gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbp 10\t<br>\nc\u00f4ng th\u1ee9c b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh c\u00f3 ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\ngiai bat phuong trinh chua dau gia tri tuyet doi\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbp 10\t<br>\ngi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbp 8\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i n\u00e2ng cao\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a nhi\u1ec1u d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nbat phuong trinh chua dau gia tri tuyet doi\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i violet\t<br>\nt\u00ecm m \u0111\u1ec3 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i to\u00e1n 10\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbp 8\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a 2 d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nc\u00e1c d\u1ea1ng b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\ngi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u01b0a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nbat phuong trinh chua an trong dau gia tri tuyet doi\t<br>\nb\u00e0i t\u1eadp gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbp 10\t<br>\nph\u01b0\u01a1ng tr\u00ecnh b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nb\u00e0i t\u1eadp b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbp 10\t<br>\nb\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u01b0a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\ngi\u1ea3i c\u00e1c b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\ngi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh c\u00f3 ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i\t<br>\nto\u00e1n 8\t<br>\ngi\u1ea3i to\u00e1n 8\t<br>\ngi\u1ea3i sgk to\u00e1n 8\t<br>\nsgk to\u00e1n 8\t<br>\nso\u1ea1n to\u00e1n 8\t<br>\ntoan 8\t<br>\nto\u00e1n l\u1edbp 8\t<br>\ngi\u1ea3i sbt to\u00e1n 8\t<br>\nsbt to\u00e1n 8\t<br>\nto\u00e1n 8 sbt\t<br>\ngiai toan 8\t<br>\ngiai sbt toan 8\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n 8\t<br>\nto\u00e1n 8 t\u1eadp 2\t<br>\ngi\u1ea3i to\u00e1n 8 sbt\t<br>\nto\u00e1n 8 vnen\t<br>\nto\u00e1n h\u00ecnh 8\t<br>\n\u0111\u1ec1 thi gi\u1eefa k\u00ec 1 to\u00e1n 8\t<br>\nto\u00e1n 8 t\u1eadp 1\t<br>\nsgk to\u00e1n 8 t\u1eadp 2\t<br>\ngi\u1ea3i to\u00e1n l\u1edbp 8\t<br>\n\u0111\u1ec1 ki\u1ec3m tra gi\u1eefa k\u00ec 1 to\u00e1n 8\t<br>\nso\u1ea1n v\u0103n 8 b\u00e0i to\u00e1n d\u00e2n s\u1ed1\t<br>\ngi\u1ea3i bt to\u00e1n 8\t<br>\ngi\u1ea3i to\u00e1n 8 sgk\t<br>\n\u0111\u1ec1 thi to\u00e1n gi\u1eefa k\u00ec 1 l\u1edbp 8\t<br>\nsgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 h\u00ecnh vu\u00f4ng\t<br>\nb\u00e0i t\u1eadp to\u00e1n 8\t<br>\ngi\u1ea3i s\u00e1ch b\u00e0i t\u1eadp to\u00e1n 8\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n l\u1edbp 8\t<br>\nso\u1ea1n to\u00e1n 8 vnen\t<br>\nto\u00e1n 8 sgk\t<br>\nto\u00e1n 8 b\u00e0i 1\t<br>\ns\u00e1ch b\u00e0i t\u1eadp to\u00e1n 8\t<br>\n\u0111\u1ec1 thi to\u00e1n l\u1edbp 8 gi\u1eefa h\u1ecdc k\u00ec 1\t<br>\nvietjack 8 to\u00e1n\t<br>\ns\u00e1ch gi\u00e1o khoa to\u00e1n 8\t<br>\nto\u00e1n 8 r\u00fat g\u1ecdn ph\u00e2n th\u1ee9c\t<br>\nto\u00e1n 8 b\u00e0i 3\t<br>\ngi\u1ea3i s\u00e1ch gi\u00e1o khoa to\u00e1n 8\t<br>\nto\u00e1n 8 quy \u0111\u1ed3ng m\u1eabu th\u1ee9c\t<br>\nto\u00e1n 8 b\u00e0i 2\t<br>\ngiai toan lop 8\t<br>\n\u0111\u1ec1 thi to\u00e1n 8 gi\u1eefa h\u1ecdc k\u00ec 1\t<br>\nto\u00e1n 9 b\u00e0i 8\t<br>\nki\u1ec3m tra gi\u1eefa k\u00ec 1 to\u00e1n 8\t<br>\nto\u00e1n 8 h\u00ecnh\t<br>\nto\u00e1n 8 h\u00ecnh thoi\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp sgk to\u00e1n 8\t<br>\ngi\u1ea3i vbt to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i 6\t<br>\nto\u00e1n 8 b\u00e0i 9\t<br>\n\u0111\u1ec1 ki\u1ec3m tra gi\u1eefa k\u00ec 2 to\u00e1n 8\t<br>\nbt to\u00e1n 8\t<br>\ngi\u1ea3i bt sgk to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i 7\t<br>\nto\u00e1n 8 b\u00e0i 4 ch\u01b0\u01a1ng 2\t<br>\nb\u00e0i t\u1eadp to\u00e1n l\u1edbp 8\t<br>\n\u0111\u1ec1 thi h\u1ecdc k\u00ec 2 to\u00e1n 8\t<br>\nto\u00e1n 8 \u00f4n t\u1eadp ch\u01b0\u01a1ng 1\t<br>\nvbt to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i 5\t<br>\nto\u00e1n 8 b\u00e0i 8\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 1\t<br>\nto\u00e1n 8 b\u00e0i 4\t<br>\nto\u00e1n 8 b\u00e0i 12\t<br>\ns\u00e1ch to\u00e1n 8\t<br>\nph\u00e9p c\u1ed9ng c\u00e1c ph\u1ea7n th\u1ee9c \u0111\u1ea1i s\u1ed1 to\u00e1n l\u1edbp 8\t<br>\n\u0111\u1ec1 thi h\u1ecdc k\u00ec 1 to\u00e1n 8\t<br>\n\u0111\u00e1p \u00e1n sgk to\u00e1n 8\t<br>\nb\u00e0i 79 trang 108 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 16 trang 11 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 b\u00e0i 4 quy \u0111\u1ed3ng m\u1eabu th\u1ee9c\t<br>\nto\u00e1n 8 b\u00e0i 10\t<br>\nto\u00e1n 8 ph\u00e2n th\u1ee9c \u0111\u1ea1i s\u1ed1\t<br>\ngi\u1ea3i s\u00e1ch to\u00e1n 8\t<br>\ngi\u1ea3i b\u00e0i to\u00e1n b\u1eb1ng c\u00e1ch l\u1eadp ph\u01b0\u01a1ng tr\u00ecnh l\u1edbp 8\t<br>\nto\u00e1n l\u1edbp 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 5 trang 8\t<br>\ntoan lop 8\t<br>\ngi\u1ea3i to\u00e1n h\u00ecnh 8\t<br>\ngi\u1ea3i s\u00e1ch gi\u00e1o khoa to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 67 trang 31 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ntr\u1eafc nghi\u1ec7m to\u00e1n 8\t<br>\ns\u00e1ch to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 7 trang 8 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi gi\u1eefa h\u1ecdc k\u00ec 1 to\u00e1n 8\t<br>\ngi\u1ea3i to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 39 trang 19 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 7 b\u00e0i 8\t<br>\n\u00f4n t\u1eadp ch\u01b0\u01a1ng 1 to\u00e1n 8\t<br>\ns\u00e1ch gi\u00e1o khoa to\u00e1n l\u1edbp 8\t<br>\ngi\u1ea3i sgk to\u00e1n 8 t\u1eadp 2\t<br>\nl\u00e0m b\u00e0i t\u1eadp to\u00e1n 8\t<br>\nto\u00e1n 8 h\u00ecnh ch\u1eef nh\u1eadt\t<br>\nto\u00e1n l\u1edbp 8 t\u1eadp 2\t<br>\nto\u00e1n 8 b\u00e0i 1 trang 36\t<br>\nto\u00e1n 8 b\u00e0i 11\t<br>\nb\u00e0i 43 trang 20 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 47 trang 22 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n h\u00ecnh l\u1edbp 8\t<br>\ngi\u1ea3i s\u00e1ch b\u00e0i t\u1eadp to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 23 trang 46 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 51 trang 24 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 26 trang 14 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi to\u00e1n 8 h\u1ecdc k\u00ec 2\t<br>\n\u0111\u1ec1 ki\u1ec3m tra to\u00e1n 8 gi\u1eefa h\u1ecdc k\u00ec 1\t<br>\nb\u00e0i 25 trang 47 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 30 trang 16 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nsoan toan 8\t<br>\nb\u00e0i 75 trang 106 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ns\u00e1ch b\u00e0i t\u1eadp to\u00e1n 8 t\u1eadp 2\t<br>\nsbt to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 21 trang 12 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 h\u00ecnh thang\t<br>\nb\u00e0i 8 trang 10 sgk to\u00e1n 9 t\u1eadp 1\t<br>\ns\u00e1ch gi\u00e1o khoa to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 h\u00ecnh thang c\u00e2n\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 2\t<br>\nsbt to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 44 trang 20 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 16 trang 43 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i to\u00e1n 8 t\u1eadp 2\t<br>\nso\u1ea1n to\u00e1n l\u1edbp 8\t<br>\nto\u00e1n 8 h\u00ecnh h\u1ecdc\t<br>\nto\u00e1n 8 nh\u1eefng h\u1eb1ng \u0111\u1eb3ng th\u1ee9c \u0111\u00e1ng nh\u1edb\t<br>\nb\u00e0i 14 trang 43 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 h\u00ecnh b\u00ecnh h\u00e0nh\t<br>\nv\u1edf b\u00e0i t\u1eadp to\u00e1n l\u1edbp 5 trang 8\t<br>\ns\u00e1ch gi\u00e1o khoa to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 21 trang 46 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 3\t<br>\n\u0111\u1ec1 thi hk2 to\u00e1n 8\t<br>\nv\u0103n 8 b\u00e0i to\u00e1n d\u00e2n s\u1ed1\t<br>\nn\u00e2ng cao v\u00e0 ph\u00e1t tri\u1ec3n to\u00e1n 8\t<br>\nl\u00e0m to\u00e1n 8\t<br>\ns\u00e1ch b\u00e0i t\u1eadp to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 nh\u00e2n \u0111\u01a1n th\u1ee9c v\u1edbi \u0111a th\u1ee9c\t<br>\nb\u00e0i 2 trang 5 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i to\u00e1n 8 h\u00ecnh h\u1ecdc\t<br>\nsgk to\u00e1n 8 t\u1eadp 2 &#8211; h\u00ecnh h\u1ecdc\t<br>\nb\u00e0i 54 trang 25 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 t\u1eadp 1 b\u00e0i 1\t<br>\nsgk to\u00e1n 8 t\u1eadp 2 h\u00ecnh h\u1ecdc\t<br>\nto\u00e1n 8 b\u00e0i 5 ch\u01b0\u01a1ng 2\t<br>\nt\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c to\u00e1n 8\t<br>\nb\u00e0i 3 trang 5 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 48 trang 22 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n h\u00ecnh 8 b\u00e0i 1\t<br>\nsgk toan 8\t<br>\nto\u00e1n l\u1edbp 7 b\u00e0i 8\t<br>\nb\u00e0i 82 trang 108 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i to\u00e1n sgk 8\t<br>\ngiai sgk toan 8 tap 1\t<br>\nb\u00e0i 18 trang 43 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 \u0111\u1ed1i x\u1ee9ng t\u00e2m\t<br>\nb\u00e0i 8 trang 10 sgk to\u00e1n 7 t\u1eadp 1\t<br>\nb\u00e0i 88 trang 111 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 41 trang 19 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nde thi to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 2 n\u0103m 2021\t<br>\nb\u00e0i 55 trang 25 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 nh\u00e2n \u0111a th\u1ee9c v\u1edbi \u0111a th\u1ee9c\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp s\u00e1ch gi\u00e1o khoa to\u00e1n 8\t<br>\nb\u00e0i 36 trang 87 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 12 trang 74 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 84 trang 109 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 8 trang 70 sgk to\u00e1n 9 t\u1eadp 1\t<br>\ngiai bt toan 8\t<br>\n\u0111\u1ec1 ki\u1ec3m tra h\u1ecdc k\u00ec 2 to\u00e1n 8\t<br>\nb\u00e0i 52 trang 96 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 trang 43\t<br>\n\u0111\u1ec1 ki\u1ec3m tra h\u1ecdc k\u00ec 1 to\u00e1n 8\t<br>\nto\u00e1n 8 nh\u1eefng h\u1eb1ng \u0111\u1eb3ng th\u1ee9c \u0111\u00e1ng nh\u1edb ti\u1ebfp\t<br>\nb\u00e0i 47 trang 93 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 22 trang 80 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 chia \u0111a th\u1ee9c m\u1ed9t bi\u1ebfn \u0111\u00e3 s\u1eafp x\u1ebfp\t<br>\ngiai sbt to\u00e1n 8\t<br>\nb\u00e0i 89 trang 111 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 63 trang 100 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 b\u00e0i 4 h\u00ecnh h\u1ecdc\t<br>\nb\u00e0i 45 trang 20 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 33 trang 16 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nvietjack to\u00e1n 8\t<br>\nb\u00e0i 1 trang 66 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n n\u00e2ng cao l\u1edbp 8\t<br>\nto\u00e1n l\u1edbp 3 trang 8\t<br>\n\u0111\u1ec1 thi gi\u1eefa k\u00ec to\u00e1n 8\t<br>\n\u0111\u1ec1 thi to\u00e1n 8 h\u1ecdc k\u00ec 1\t<br>\n\u0111\u1ecbnh lu\u1eadt b\u1ea3o to\u00e0n kh\u1ed1i l\u01b0\u1ee3ng l\u1edbp 8\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n 8 sgk\t<br>\nb\u00e0i 34 trang 17 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 64 trang 100 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 20 trang 79 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 17 trang 11 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 44 trang 92 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 85 trang 109 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 68 trang 31 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nsgk to\u00e1n 8 t\u1eadp 1 h\u00ecnh h\u1ecdc\t<br>\nb\u00e0i 28 trang 22 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 23 trang 80 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 24 trang 80 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 7\t<br>\nb\u00e0i 1 trang 5 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i v\u1edf b\u00e0i t\u1eadp to\u00e1n 8\t<br>\nb\u00e0i 33 trang 50 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 trang 22\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 10\t<br>\nto\u00e1n s\u1ed1 8\t<br>\nh\u1ecdc t\u1ed1t to\u00e1n 8\t<br>\ngi\u1ea3i to\u00e1n 8 b\u00e0i 1\t<br>\nb\u00e0i 1 trang 36 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 75 trang 33 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 \u00f4n t\u1eadp ch\u01b0\u01a1ng 3\t<br>\ngi\u1ea3i b\u00e0i to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 48 trang 93 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 6\t<br>\ngi\u1ea3i s\u00e1ch to\u00e1n l\u1edbp 8\t<br>\n\u0111\u1ec1 to\u00e1n 8\t<br>\nb\u00e0i 15 trang 75 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i to\u00e1n 8 t\u1eadp 1 trang 5\t<br>\nto\u00e1n 8 t\u1ee9 gi\u00e1c\t<br>\nb\u00e0i 77 trang 33 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i sbt to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 80 trang 33 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi hk1 to\u00e1n 8\t<br>\nto\u00e1n h\u00ecnh 8 b\u00e0i 4\t<br>\nde thi to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 2\t<br>\nb\u00e0i 45 trang 92 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 b\u00e0i\t<br>\nb\u00e0i 7 trang 71 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 8\t<br>\ns\u00e1ch gi\u1ea3i to\u00e1n l\u1edbp 8\t<br>\ngiai sgk toan 8\t<br>\nth\u1ea7y quang to\u00e1n 8\t<br>\nto\u00e1n 8 ph\u00e9p c\u1ed9ng c\u00e1c ph\u1ea7n th\u1ee9c \u0111\u1ea1i s\u1ed1\t<br>\nb\u00e0i 11 trang 8 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 27 trang 22 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 8 trang 71 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi cu\u1ed1i k\u00ec 1 to\u00e1n 8\t<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy to\u00e1n h\u00ecnh 8\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 4\t<br>\nb\u00e0i 19 trang 43 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 49 trang 93 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i t\u1eadp to\u00e1n l\u1edbp 5 trang 8\t<br>\nb\u00e0i t\u1eadp to\u00e1n h\u00ecnh l\u1edbp 8\t<br>\nb\u00e0i 16 trang 75 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 23 trang 12 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 46 trang 31 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nde thi gi\u1eefa k\u00ec 2 to\u00e1n 8 c\u00f3 \u0111\u00e1p an\t<br>\nb\u00e0i 27 trang 14 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ns\u00e1ch gi\u00e1o khoa to\u00e1n l\u1edbp 8 t\u1eadp 1\t<br>\nb\u00e0i 5 trang 8 sgk to\u00e1n 7 t\u1eadp 1\t<br>\nb\u00e0i 8 trang 8 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 58 trang 99 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 di\u1ec7n t\u00edch h\u00ecnh ch\u1eef nh\u1eadt\t<br>\nb\u00e0i 78 trang 33 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 10 trang 8 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i to\u00e1n l\u1edbp 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 12\t<br>\nb\u00e0i 65 trang 100 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i\t<br>\nb\u00e0i 22 trang 46 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 29 trang 50 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 h\u00ecnh h\u1ecdc b\u00e0i 1\t<br>\nl\u00e0m sgk to\u00e1n 8\t<br>\nto\u00e1n 8 trang 8\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 9\t<br>\nng\u1eef v\u0103n 8 b\u00e0i to\u00e1n d\u00e2n s\u1ed1\t<br>\n\u0111\u1ec1 to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 2\t<br>\nl\u00fd thuy\u1ebft to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i 3 nh\u1eefng h\u1eb1ng \u0111\u1eb3ng th\u1ee9c \u0111\u00e1ng nh\u1edb\t<br>\nb\u00e0i 81 trang 33 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 31 trang 23 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nchuy\u00ean \u0111\u1ec1 gi\u1ea3i b\u00e0i to\u00e1n b\u1eb1ng c\u00e1ch l\u1eadp ph\u01b0\u01a1ng tr\u00ecnh l\u1edbp 8 co dap an\t<br>\n\u0111\u1ec1 c\u01b0\u01a1ng \u00f4n t\u1eadp to\u00e1n 8 h\u1ecdc k\u00ec 2 c\u00f3 \u0111\u00e1p \u00e1n\t<br>\ngi\u1ea3i to\u00e1n 9 b\u00e0i 8\t<br>\nto\u00e1n l\u1edbp 8 h\u00ecnh h\u1ecdc\t<br>\nb\u00e0i 61 trang 99 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi to\u00e1n h\u1ecdc k\u00ec 2 l\u1edbp 8\t<br>\nb\u00e0i 43 trang 92 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 2 trang 66 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i to\u00e1n 8 b\u00e0i 2\t<br>\nto\u00e1n 8 gi\u1ea3i b\u00e0i to\u00e1n b\u1eb1ng c\u00e1ch l\u1eadp ph\u01b0\u01a1ng tr\u00ecnh\t<br>\nto\u00e1n 8 ph\u01b0\u01a1ng tr\u00ecnh t\u00edch\t<br>\nto\u00e1n l\u1edbp 8 \u00f4n t\u1eadp ch\u01b0\u01a1ng 1\t<br>\nb\u00e0i 11 trang 74 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 b\u00e0i 5\t<br>\ngi\u1ea3i to\u00e1n l\u1edbp 8 t\u1eadp 2\t<br>\nb\u00e0i 49 trang 22 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 \u00f4n t\u1eadp ch\u01b0\u01a1ng 2\t<br>\nv\u1edf b\u00e0i t\u1eadp to\u00e1n l\u1edbp 5 b\u00e0i 8\t<br>\nb\u00e0i 35 trang 17 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 8 trang 56 sgk to\u00e1n 7 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 8 m\u00f4n to\u00e1n h\u00e0 n\u1ed9i\t<br>\nb\u00e0i 9 trang 71 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 b\u00e0i 1 h\u00ecnh h\u1ecdc\t<br>\nb\u00e0i 31 trang 16 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi to\u00e1n h\u1ecdc k\u00ec 1 l\u1edbp 8\t<br>\nb\u00e0i 25 trang 80 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ns\u00e1ch b\u00e0i t\u1eadp to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 57 trang 25 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n<a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n<\/a> 8\t<br>\nb\u00e0i 53 trang 96 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 1 n\u0103m 2017 c\u00f3 \u0111\u00e1p \u00e1n\t<br>\n\u0111\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n 7 8 gam este\t<br>\nto\u00e1n sbt 8\t<br>\nto\u00e1n h\u00ecnh 8 b\u00e0i 3\t<br>\nb\u00e0i 71 trang 103 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 23 trang 17 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n l\u1edbp 4 trang 8\t<br>\nb\u00e0i 15 trang 67 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nh\u1ecdc to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 21 trang 79 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i t\u1eadp sgk to\u00e1n 8\t<br>\nbt sgk to\u00e1n 8\t<br>\nb\u00e0i 38 trang 52 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i sgk to\u00e1n l\u1edbp 8\t<br>\ngi\u1ea3i to\u00e1n 8 b\u00e0i 3\t<br>\nto\u00e1n 8 trang 16\t<br>\nb\u00e0i to\u00e1n d\u00e2n s\u1ed1 l\u1edbp 8\t<br>\nb\u00e0i 3 trang 8 sgk to\u00e1n 7 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 t\u1eadp 1 b\u00e0i 1\t<br>\nde thi to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 2 n\u0103m 2019 c\u00f3 \u0111\u00e1p \u00e1n\t<br>\nto\u00e1n 8 vietjack\t<br>\nto\u00e1n h\u00ecnh 8 b\u00e0i 2\t<br>\nso\u1ea1n to\u00e1n 8 t\u1eadp 2\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 25 trang 12 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 trang 33\t<br>\nto\u00e1n 8 t\u1eadp 2 b\u00e0i 1\t<br>\nb\u00e0i 4 trang 8 sgk to\u00e1n 7 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi to\u00e1n l\u1edbp 8 cu\u1ed1i h\u1ecdc k\u00ec 2\t<br>\nb\u00e0i 35 trang 25 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 13 trang 74 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nsgk to\u00e1n l\u1edbp 8\t<br>\nso\u1ea1n v\u0103n 8 b\u00e0i b\u00e0i to\u00e1n d\u00e2n s\u1ed1\t<br>\nto\u00e1n 8 trang 19\t<br>\ngiai bai tap toan 8\t<br>\nt\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c to\u00e1n l\u1edbp 6 7 8 9\t<br>\nb\u00e0i 70 trang 32 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 54 trang 96 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 45 trang 31 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nde thi h\u1ecdc k\u00ec 2 l\u1edbp 8 m\u00f4n to\u00e1n\t<br>\nto\u00e1n 8 ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a \u1ea9n \u1edf m\u1eabu\t<br>\nb\u00e0i 63 trang 28 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 3 trang 67 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 76 trang 106 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 32 trang 77 sgk to\u00e1n 8 t\u1eadp 2\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n h\u00ecnh l\u1edbp 8\t<br>\ngiai sgk toan lop 8\t<br>\nb\u00e0i 14 trang 9 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ns\u00e1ch to\u00e1n 8 t\u1eadp 1\t<br>\nb\u1ecb quy\u1ebft gi\u1ea3i b\u00e0i to\u00e1n b\u1eb1ng c\u00e1ch l\u1eadp ph\u01b0\u01a1ng tr\u00ecnh l\u1edbp 8\t<br>\nb\u00e0i 40 trang 19 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 nh\u00e2n \u0111\u01a1n th\u1ee9c v\u1edbi \u0111a th\u1ee9c\t<br>\nb\u00e0i 27 trang 80 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi cu\u1ed1i k\u00ec 2 l\u1edbp 8 m\u00f4n to\u00e1n\t<br>\nto\u00e1n 8 n\u00e2ng cao\t<br>\n\u0111\u1ec1 to\u00e1n 8 h\u1ecdc k\u00ec 2\t<br>\nb\u00e0i 6 trang 62 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nc\u00f4ng th\u1ee9c to\u00e1n 8\t<br>\ns\u00e1ch to\u00e1n l\u1edbp 8 t\u1eadp 1\t<br>\nb\u00e0i 37 trang 30 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 t\u1eadp 1 b\u00e0i 2\t<br>\nto\u00e1n 8 trang 5\t<br>\nto\u00e1n 8 trang 108\t<br>\nb\u00e0i 40 trang 31 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 b\u00e0i 11 h\u00ecnh thoi\t<br>\nto\u00e1n sgk 8\t<br>\ngi\u1ea3i bt sbt to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i 2 nh\u00e2n \u0111a th\u1ee9c v\u1edbi \u0111a th\u1ee9c\t<br>\ns\u00e1ch n\u00e2ng cao v\u00e0 ph\u00e1t tri\u1ec3n to\u00e1n 8\t<br>\n\u0111\u1ec1 thi to\u00e1n l\u1edbp 8\t<br>\n\u0111\u1ed9t ph\u00e1 8+ m\u00f4n to\u00e1n pdf\t<br>\nto\u00e1n l\u1edbp 6 b\u00e0i 8\t<br>\ns\u00e1ch to\u00e1n 8 t\u1eadp 2\t<br>\nc\u00e1ch h\u1ecdc gi\u1ecfi to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i 1 nh\u00e2n \u0111\u01a1n th\u1ee9c v\u1edbi \u0111a th\u1ee9c\t<br>\nb\u00e0i 18 trang 75 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 trang 40\t<br>\nv\u1edf b\u00e0i t\u1eadp to\u00e1n l\u1edbp 4 trang 8\t<br>\nb\u00e0i 34 trang 25 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 30 trang 23 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 \u0111a gi\u00e1c \u0111a gi\u00e1c \u0111\u1ec1u\t<br>\nto\u00e1n 8 b\u00e0i 39 trang 19\t<br>\nb\u00e0i 22 trang 12 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 trang 39\t<br>\nb\u00e0i 56 trang 25 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 21 trang 17 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 trang 14\t<br>\nto\u00e1n \u0111\u1ea1i 8\t<br>\nto\u00e1n 8 s\u00e1ch b\u00e0i t\u1eadp\t<br>\nb\u00e0i 3 to\u00e1n 8\t<br>\nto\u00e0n ch\u1ee9c cao th\u1ee7 ph\u1ea7n 2 t\u1eadp 8\t<br>\nto\u00e1n 8 b\u00e0i 2 h\u00ecnh thang\t<br>\n\u0111\u1ec1 thi to\u00e1n cu\u1ed1i k\u00ec 2 l\u1edbp 8\t<br>\nto\u00e1n 8 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n\t<br>\nto\u00e1n 8 b\u00e0i 14 trang 43\t<br>\n\u0111\u00e1p \u00e1n sbt to\u00e1n 8\t<br>\ns\u00e1ch gi\u00e1o khoa to\u00e1n l\u1edbp 8 t\u1eadp 2\t<br>\nto\u00e1n 8 b\u00e0i 16 trang 11\t<br>\nto\u00e1n 8 b\u00e0i 3 h\u00ecnh thang c\u00e2n\t<br>\nb\u00e0i 1 to\u00e1n 8\t<br>\nb\u00e0i 73 trang 32 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 9 b\u00e0i 8\t<br>\nb\u00e0i 51 trang 33 sgk to\u00e1n 8 t\u1eadp 2\t<br>\ngi\u1ea3i to\u00e1n 8 h\u00ecnh\t<br>\nb\u00e0i 13 trang 9 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i sbt to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 b\u00e0i 43 trang 20\t<br>\n\u0111\u1ec1 thi h\u1ecdc k\u00ec 2 m\u00f4n to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 1 trang 36 sgk to\u00e1n 8\t<br>\nb\u00e0i 18 trang 11 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n l\u1edbp 8 nh\u00e2n \u0111a th\u1ee9c v\u1edbi \u0111a th\u1ee9c\t<br>\nb\u00e0i 59 trang 99 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 1\t<br>\nthu\u1eadt to\u00e1n l\u00e0 g\u00ec tin 8\t<br>\n<a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n<\/a> l\u1edbp 8\t<br>\n\u0111\u1ec1 thi to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 1 c\u00f3 \u0111\u00e1p \u00e1n\t<br>\nb\u00e0i 53 trang 24 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i to\u00e1n h\u00ecnh l\u1edbp 8\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n l\u1edbp 8 t\u1eadp 1\t<br>\nto\u00e1n 8 ph\u00e2n t\u00edch \u0111a th\u1ee9c th\u00e0nh nh\u00e2n t\u1eed\t<br>\ngi\u00e1o \u00e1n to\u00e1n 8\t<br>\nb\u00e0i 22 trang 17 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 trang 36\t<br>\ntr\u1eafc nghi\u1ec7m to\u00e1n 8 gi\u1eefa k\u00ec 1\t<br>\ngi\u1ea3i to\u00e1n sbt 8\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n sgk l\u1edbp 8\t<br>\nto\u00e1n 8 b\u00e0i 5 ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a \u1ea9n \u1edf m\u1eabu\t<br>\nto\u00e1n 8 trang 11\t<br>\nb\u00e0i 50 trang 58 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 17 trang 75 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i b\u00e0i to\u00e1n 8\t<br>\n\u0111\u1ec1 ki\u1ec3m tra 1 ti\u1ebft to\u00e1n h\u00ecnh l\u1edbp 8 ch\u01b0\u01a1ng 1\t<br>\nl\u00e0m bt to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i h\u00ecnh vu\u00f4ng\t<br>\nb\u00e0i 7 trang 62 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nc\u00f4ng th\u1ee9c to\u00e1n l\u1edbp 8\t<br>\nto\u00e1n 8 trang 46\t<br>\n7 hang dang thuc dang nho toan lop 8\t<br>\nl\u00e0m b\u00e0i t\u1eadp to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 41 trang 31 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nv\u1edf b\u00e0i t\u1eadp to\u00e1n l\u1edbp 5 t\u1eadp 1 trang 8\t<br>\nto\u00e1n 8 trang 38\t<br>\nb\u00e0i 74 trang 32 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u00f4n t\u1eadp ch\u01b0\u01a1ng 3 to\u00e1n 8\t<br>\nto\u00e1n 8 sgk t\u1eadp 1\t<br>\nb\u00e0i 30 trang 50 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n l\u1edbp 5 trang 8\t<br>\nto\u00e1n 8 t\u1eadp 2 b\u00e0i 3\t<br>\ngi\u1ea3i to\u00e1n 8 b\u00e0i 5\t<br>\nb\u00e0i 35 trang 87 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nbai tap toan 8\t<br>\n\u0111\u1ec1 ki\u1ec3m tra 1 ti\u1ebft to\u00e1n h\u00ecnh 8 ch\u01b0\u01a1ng 1\t<br>\ngi\u1ea3i s\u00e1ch b\u00e0i t\u1eadp to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 b\u00e0i 4 nh\u1eefng h\u1eb1ng \u0111\u1eb3ng th\u1ee9c \u0111\u00e1ng nh\u1edb\t<br>\nb\u00e0i 13 trang 40 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 42 trang 19 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i toan 8\t<br>\nb\u00e0i 34 sbt to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 b\u00e0i 7 trang 8\t<br>\nb\u00e0i 8 trang 40 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 t\u1eadp 2 b\u00e0i 5\t<br>\nb\u00e0i 4 trang 38 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 50 trang 33 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 24 trang 17 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 42 trang 54 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 11 trang 13 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nso\u1ea1n v\u0103n l\u1edbp 8 b\u00e0i to\u00e1n d\u00e2n s\u1ed1\t<br>\nto\u00e1n l\u1edbp 8 vnen\t<br>\nb\u00e0i 15 trang 43 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 35 trang 50 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n h\u00ecnh 8 t\u1eadp 2\t<br>\nto\u00e1n 8 b\u00e0i 5 nh\u1eefng h\u1eb1ng \u0111\u1eb3ng th\u1ee9c \u0111\u00e1ng nh\u1edb\t<br>\nb\u00e0i 76 trang 33 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 46 trang 57 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n 8 sbt\t<br>\nto\u00e1n 8 b\u00e0i quy \u0111\u1ed3ng m\u1eabu th\u1ee9c\t<br>\n\u0111\u1ec1 thi to\u00e1n 8\t<br>\n\u0111\u1ec1 c\u01b0\u01a1ng \u00f4n t\u1eadp to\u00e1n 8 h\u1ecdc k\u00ec 1 c\u00f3 \u0111\u00e1p \u00e1n\t<br>\nto\u00e1n 8 \u0111\u1ed1i x\u1ee9ng tr\u1ee5c\t<br>\nb\u00e0i t\u1eadp to\u00e1n 8 t\u1eadp 2\t<br>\n\u0111\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 8 m\u00f4n to\u00e1n c\u00f3 \u0111\u00e1p \u00e1n\t<br>\nb\u00e0i 52 trang 24 sgk to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 thi to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 2\t<br>\n\u0111\u1ec1 thi to\u00e1n 8 cu\u1ed1i h\u1ecdc k\u00ec 2\t<br>\nto\u00e1n 8 k\u00ec 2\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp sbt to\u00e1n 8\t<br>\nthi\u1ebfu n\u1eef to\u00e0n phong ph\u1ea7n 2 t\u1eadp 8\t<br>\nb\u00e0i 7 trang 118 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 12 trang 13 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nde thi gi\u1eefa k\u00ec 1 to\u00e1n 8 c\u00f3 \u0111\u00e1p an\t<br>\nb\u00e0i 51 trang 96 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 72 trang 32 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i to\u00e1n 8 sgk t\u1eadp 1\t<br>\nb\u00e0i 35 trang 51 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 di\u1ec7n t\u00edch tam gi\u00e1c\t<br>\nb\u00e0i 6 trang 118 sgk to\u00e1n 8\t<br>\nb\u00e0i 12 trang 8 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nthu\u1ef7 ph\u00e2n ho\u00e0n to\u00e0n 8 8g este \u0111\u01a1n ch\u1ee9c\t<br>\nto\u00e1n 8 b\u00e0i 1 t\u1ee9 gi\u00e1c\t<br>\ngiai bai tap toan lop 8\t<br>\nto\u00e1n l\u1edbp 8 nh\u1eefng h\u1eb1ng \u0111\u1eb3ng th\u1ee9c \u0111\u00e1ng nh\u1edb\t<br>\ngi\u1ea3i v\u1edf b\u00e0i t\u1eadp to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 5 trang 6 sgk to\u00e1n 8 t\u1eadp 1\t<br>\ngi\u1ea3i to\u00e1n b\u1eb1ng c\u00e1ch l\u1eadp ph\u01b0\u01a1ng tr\u00ecnh l\u1edbp 8\t<br>\nto\u00e0n v\u0103n ngh\u1ecb quy\u1ebft trung \u01b0\u01a1ng 5 kh\u00f3a 8\t<br>\nb\u00e0i 9 trang 8 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 27 sgk to\u00e1n 8 t\u1eadp 2 trang 22\t<br>\nto\u00e1n 8 b\u00e0i h\u00ecnh thoi\t<br>\nto\u00e1n l\u1edbp 8 trang 5\t<br>\nto\u00e1n 8 b\u00e0i 21 trang 46\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp s\u00e1ch gi\u00e1o khoa to\u00e1n l\u1edbp 8\t<br>\nto\u00e1n vnen 8\t<br>\nb\u00e0i to\u00e1n hai xe \u0111i ng\u01b0\u1ee3c chi\u1ec1u l\u1edbp 8\t<br>\nb\u00e0i 39 sgk to\u00e1n 8 t\u1eadp 1 trang 19\t<br>\nb\u00e0i 4 trang 5 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 11 trang 63 sgk to\u00e1n 8 t\u1eadp 2\t<br>\ngiai bai tap toan lop 8 tap 1 sach bai tap\t<br>\nto\u00e1n 8 t\u1eadp 2 b\u00e0i 4\t<br>\ngbt to\u00e1n 8\t<br>\nto\u00e1n 8 t\u1eadp 1 trang 5\t<br>\n\u0111\u1ec1 to\u00e1n 8 gi\u1eefa k\u00ec 1\t<br>\n\u0111\u1ec1 thi to\u00e1n hk2 l\u1edbp 8\t<br>\n\u0111\u1ec1 thi <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> gi\u1ecfi to\u00e1n 8 c\u1ea5p huy\u1ec7n c\u00f3 \u0111\u00e1p \u00e1n violet\t<br>\nto\u00e1n 8 b\u00e0i 2 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n\t<br>\nb\u00e0i 46 trang 84 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n h\u00ecnh 8 b\u00e0i 11\t<br>\nto\u00e1n 8 b\u00e0i 2 trang 5\t<br>\nto\u00e1n h\u00ecnh 8 b\u00e0i 9\t<br>\nb\u00e0i 10 trang 63 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 di\u1ec7n t\u00edch h\u00ecnh thoi\t<br>\nto\u00e1n l\u1edbp 8 trang 8\t<br>\nto\u00e1n 8 di\u1ec7n t\u00edch h\u00ecnh thang\t<br>\nb\u00e0i 3 trang 115 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nde kiem tra toan 8 chuong 1 co dap an\t<br>\n\u0111\u1ec1 ki\u1ec3m tra 1 ti\u1ebft to\u00e1n 8 ch\u01b0\u01a1ng 1 \u0111\u1ea1i s\u1ed1\t<br>\ngi\u1ea3i to\u00e1n 8 b\u00e0i 7\t<br>\nto\u00e1n 8 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n c\u1ee7a ph\u00e2n th\u1ee9c\t<br>\nb\u00e0i 26 trang 80 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 31 sbt to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n h\u00ecnh l\u1edbp 8 b\u00e0i 1\t<br>\ns\u01a1 \u0111\u1ed3 t\u01b0 duy to\u00e1n 8 ch\u01b0\u01a1ng 1 h\u00ecnh h\u1ecdc\t<br>\nb\u00e0i 61 trang 27 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n chuy\u1ec3n \u0111\u00f4ng l\u1edbp 8\t<br>\nb\u00e0i 70 trang 103 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nde thi giua ki 1 toan 8\t<br>\n\u0111\u1ec1 ki\u1ec3m tra m\u1ed9t ti\u1ebft to\u00e1n s\u1ed1 l\u1edbp 8 ch\u01b0\u01a1ng 1\t<br>\nto\u00e1n 8 b\u00e0i 4 ph\u01b0\u01a1ng tr\u00ecnh t\u00edch\t<br>\n\u00f4n t\u1eadp to\u00e1n 8\t<br>\ns\u00e1ch gi\u1ea3i to\u00e1n 8\t<br>\nb\u00e0i 67 trang 102 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 8 trang 18 sgk to\u00e1n 11\t<br>\nto\u00e1n 8 b\u00e0i ph\u00e2n th\u1ee9c \u0111\u1ea1i s\u1ed1\t<br>\n\u0111\u1ec1 thi to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 1 n\u0103m 2016\t<br>\nto\u00e1n 8 vnen t\u1eadp 2\t<br>\nto\u00e1n 8 \u0111\u1ea1i s\u1ed1\t<br>\nto\u00e1n 8 b\u00e0i 1 &#8211; h\u00ecnh h\u1ecdc\t<br>\nso\u1ea1n to\u00e1n h\u00ecnh 8\t<br>\nb\u00e0i 77 trang 106 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 31 trang 75 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 6 trang 9 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 69 trang 31 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nt\u00f3m t\u1eaft ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n to\u00e1n l\u1edbp 8\t<br>\nb\u00e0i 18 trang 68 sgk to\u00e1n 8 t\u1eadp 2\t<br>\n\u0111\u00e1p \u00e1n \u0111\u1ec1 thi h\u1ecdc k\u00ec 2 l\u1edbp 8 m\u00f4n to\u00e1n 2017 qu\u1eadn ba \u0111\u00ecnh\t<br>\nb\u00e0i 7 trang 8 sgk to\u00e1n 6 t\u1eadp 2\t<br>\nto\u00e1n h\u00ecnh 8 b\u00e0i 12\t<br>\nto\u00e1n 8 trang 50\t<br>\n\u0111\u1ec1 ki\u1ec3m tra 1 ti\u1ebft to\u00e1n 8 ch\u01b0\u01a1ng 1 h\u00ecnh h\u1ecdc\t<br>\ntoan 8 sbt\t<br>\nb\u00e0i 33 trang 77 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 47 trang 84 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 trang 25\t<br>\nto\u00e1n 8 sbt t\u1eadp 2\t<br>\ns\u00e1ch bt to\u00e1n 8\t<br>\ngi\u1ea3i to\u00e1n 8 b\u00e0i 6\t<br>\nto\u00e1n 8 luy\u1ec7n t\u1eadp trang 8\t<br>\nb\u1ed3i d\u01b0\u1ee1ng n\u0103ng l\u1ef1c t\u1ef1 h\u1ecdc to\u00e1n 8\t<br>\nb\u00e0i 28 trang 14 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 82 trang 33 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nki\u1ebfn th\u1ee9c to\u00e1n 8\t<br>\nto\u00e1n 8 li\u00ean h\u1ec7 gi\u1eefa th\u1ee9 t\u1ef1 v\u00e0 ph\u00e9p nh\u00e2n\t<br>\ngi\u1ea3i to\u00e1n 8 trang 8\t<br>\nb\u00e0i 28 trang 80 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i 158 sbt to\u00e1n 8 t\u1eadp 1\t<br>\nh\u1ecdc to\u00e1n 8\t<br>\ntr\u1eafc nghi\u1ec7m to\u00e1n 8 h\u1ecdc k\u00ec 2\t<br>\nto\u00e1n l\u1edbp 6 t\u1eadp 2 trang 8\t<br>\nb\u00e0i 35 trang 79 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nb\u00e0i 32 trang 23 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nto\u00e1n 8 h\u1ecdc k\u00ec 2\t<br>\nki\u1ec3m tra gi\u1eefa k\u00ec 2 to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i 18 trang 43\t<br>\ngi\u1ea3i to\u00e1n 8 b\u00e0i 9\t<br>\nb\u00e0i 36 trang 79 sgk to\u00e1n 8 t\u1eadp 2\t<br>\ngiai to\u00e1n 8\t<br>\nb\u00e0i t\u1eadp to\u00e1n 8 t\u1eadp 1\t<br>\n\u0111\u1ec1 ki\u1ec3m tra to\u00e1n 8 h\u1ecdc k\u00ec 2\t<br>\nto\u00e1n 8 quy \u0111\u1ed3ng m\u1eabu th\u1ee9c nhi\u1ec1u ph\u00e2n th\u1ee9c\t<br>\ngiai toan hinh hoc lop 8\t<br>\nto\u00e1n 8 b\u00e0i 3 h\u00ecnh h\u1ecdc\t<br>\n\u0111\u1ec1 thi cu\u1ed1i h\u1ecdc k\u00ec 2 l\u1edbp 8 m\u00f4n to\u00e1n\t<br>\nde cuong on tap toan 8 hoc ki 1 co dap an\t<br>\nb\u00e0i 55 trang 96 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nv\u1edf b\u00e0i t\u1eadp to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i 51 trang 24\t<br>\n\u0111\u1ec1 thi kh\u1ea3o s\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea7u n\u0103m l\u1edbp 8 m\u00f4n to\u00e1n\t<br>\nl\u00e0m sbt to\u00e1n 8\t<br>\nso\u1ea1n to\u00e1n 8 b\u00e0i 1\t<br>\nto\u00e1n 8 b\u00e0i 26 trang 14\t<br>\nsbt toan 8\t<br>\nh\u1ecdc t\u1ed1t to\u00e1n 8 t\u1eadp 1\t<br>\nb\u00e0i to\u00e1n 8\t<br>\ngi\u1ea3i b\u00e0i t\u1eadp to\u00e1n l\u1edbp 8 t\u1eadp 2\t<br>\nki\u1ec3m tra h\u1ecdc k\u00ec 1 to\u00e1n 8\t<br>\nto\u00e1n 8 b\u00e0i 67 trang 31\t<br>\nb\u00e0i 4 trang 59 sgk to\u00e1n 8 t\u1eadp 2\t<br>\nchuy\u00ean \u0111\u1ec1 b\u1ed3i d\u01b0\u1ee1ng h\u1ecdc sinh gi\u1ecfi to\u00e1n 8 h\u00ecnh h\u1ecdc\t<br>\nto\u00e1n 8 t\u1eadp 2 h\u00ecnh h\u1ecdc\t<br>\nb\u00e0i 37 sgk to\u00e1n 8 t\u1eadp 2 trang 30\t<br>\nt\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c to\u00e1n l\u1edbp 8\t<br>\nto\u00e1n 8 b\u00e0i 25 trang 47\t<br>\n\u0111\u1ec1 to\u00e1n l\u1edbp 8 h\u1ecdc k\u00ec 1\t<br>\nto\u00e1n h\u00ecnh 8 b\u00e0i 10\t<br>\ngi\u1ea3i to\u00e1n l\u1edbp 8 b\u00e0i 1\t<br>\nb\u00e0i 2 to\u00e1n 8\t<br>\nb\u00e0i 30 trang 75 sgk to\u00e1n 8 t\u1eadp 2\t<br>\n\u0111\u1ec1 thi to\u00e1n 8 gi\u1eefa h\u1ecdc k\u00ec 2\t<br>\nb\u00e0i 34 trang 50 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 t\u1eadp 2 b\u00e0i 2\t<br>\n\u0111\u1ec1 thi to\u00e1n gi\u1eefa k\u00ec 2 l\u1edbp 8\t<br>\nto\u00e1n 8 ph\u00e9p tr\u1eeb c\u00e1c ph\u1ea7n th\u1ee9c \u0111\u1ea1i s\u1ed1\t<br>\nto\u00e1n 8 b\u00e0i r\u00fat g\u1ecdn ph\u00e2n th\u1ee9c\t<br>\nto\u00e1n l\u1edbp 5 b\u00e0i 8\t<br>\nto\u00e1n 8 b\u00e0i 15 trang 43\t<br>\ngi\u1ea3i to\u00e1n 8 trang 43\t<br>\nb\u00e0i 14 trang 7 sbt to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 m\u1edf \u0111\u1ea7u v\u1ec1 ph\u01b0\u01a1ng tr\u00ecnh\t<br>\nb\u00e0i 83 trang 33 sgk to\u00e1n 8 t\u1eadp 1\t<br>\nto\u00e1n 8 nh\u1eefng h\u1eb1ng \u0111\u1eb3ng th\u1ee9c \u0111\u00e1ng nh\u1edb (ti\u1ebfp)\t<br>\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn D\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u00e0 m\u1ed9t ki\u1ebfn th\u1ee9c r\u1ea5t quen thu\u1ed9c trong To\u00e1n h\u1ecdc v\u00e0 c\u00e1ch gi\u1ea3i b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh ch\u1ee9a d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u0169ng l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng kh\u00f4ng k\u00e9m c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh h\u1ecdc. V\u1eady th\u1ebf n\u00e0o l\u00e0 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh c\u00f3 ch\u1ee9a d\u1ea5u [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[9,4],"tags":[],"class_list":["post-1075","post","type-post","status-publish","format-standard","hentry","category-toan-hoc","category-trung-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1075","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=1075"}],"version-history":[{"count":2,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1075\/revisions"}],"predecessor-version":[{"id":25719,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1075\/revisions\/25719"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1075"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1075"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}