{"id":1055,"date":"2021-10-08T13:07:34","date_gmt":"2021-10-08T13:07:34","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=1055"},"modified":"2021-10-14T22:10:35","modified_gmt":"2021-10-14T15:10:35","slug":"bien-doi-cac-bieu-thuc-huu-ti-va-huong-dan-giai-mot-so-bai-tap","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/bien-doi-cac-bieu-thuc-huu-ti-va-huong-dan-giai-mot-so-bai-tap\/","title":{"rendered":"Bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 v\u00e0 h\u01b0\u1edbng d\u1eabn gi\u1ea3i m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp"},"content":{"rendered":"\n<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p>To\u00e1n h\u1ecdc lu\u00f4n c\u00f3 nh\u1eefng \u0111i\u1ec1u th\u00fa v\u1ecb m\u00e0 con ng\u01b0\u1eddi d\u00f9 c\u00f3 t\u00ecm hi\u1ec3u v\u00e0 kh\u00e1m ph\u00e1 nhi\u1ec1u th\u1ebf n\u00e0o c\u0169ng kh\u00f4ng th\u1ec3 h\u1ebft \u0111\u01b0\u1ee3c. Ng\u00e0y h\u00f4m nay, Vietlearn s\u1ebd c\u00f9ng v\u1edbi b\u1ea1n t\u00ecm hi\u1ec3u v\u1ec1 bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 v\u00e0 bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9. \u0110\u1ed3ng th\u1eddi s\u1ebd c\u00f3 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp c\u0169ng nh\u01b0 c\u00e1ch gi\u1ea3i \u0111\u1ec3 gi\u00fap b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m b\u00e0i t\u1eadp m\u1ed9t c\u00e1ch nhanh nh\u1ea5t.<\/p>\n\n\n\n<p>Bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c<\/p>\n\n\n\n<p>Bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 l\u00e0 g\u00ec?<\/p>\n\n\n\n<p>Bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 l\u00e0 c\u00e1c bi\u1ec3u th\u1ee9c nguy\u00ean v\u00e0 bi\u1ec3u th\u1ee9c ph\u00e2n.<\/p>\n\n\n\n<p>Bi\u1ec3u th\u1ee9c nguy\u00ean l\u00e0 m\u1ed9t \u0111a th\u1ee9c.<\/p>\n\n\n\n<p>M\u1ed9t bi\u1ec3u th\u1ee9c ch\u1ee9a c\u00e1c ph\u00e9p to\u00e1n c\u1ed9ng, tr\u1eeb, nh\u00e2n, chia v\u00e0 ch\u1ee9a bi\u1ebfn \u1edf m\u1eabu \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bi\u1ec3u th\u1ee9c ph\u00e2n<\/p>\n\n\n\n<p>V\u00ed d\u1ee5 nh\u01b0 c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 sau:<\/p>\n\n\n\n<p>Bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9<\/p>\n\n\n\n<p>Vi\u1ec7c bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 s\u1ebd th\u1ef1c hi\u1ec7n theo c\u00e1c quy t\u1eafc c\u1ee7a ph\u00e9p to\u00e1n c\u1ed9ng, tr\u1eeb, nh\u00e2n, chia c\u00e1c ph\u00e2n th\u1ee9c. T\u1eeb \u0111\u00f3, c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 s\u1ebd \u0111\u01b0\u1ee3c bi\u1ebfn \u0111\u1ed5i th\u00e0nh m\u1ed9t ph\u00e2n th\u1ee9c.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5: Th\u1ef1c hi\u1ec7n bi\u1ebfn \u0111\u1ed5i bi\u1ec3u th\u1ee9c th\u00e0nh m\u1ed9t ph\u00e2n th\u1ee9c nh\u01b0 sau:<\/p>\n\n\n\n<p>Bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c<\/p>\n\n\n\n<p>T\u1eeb c\u00e1ch bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 ch\u00fang ta c\u00f3 c\u00e1ch gi\u1ea3i b\u00e0i to\u00e1n li\u00ean quan \u0111\u1ebfn gi\u00e1 tr\u1ecb c\u1ee7a ph\u00e2n th\u1ee9c nh\u01b0 sau:<\/p>\n\n\n\n<p>Tr\u01b0\u1edbc h\u1ebft, ti\u1ebfn h\u00e0nh t\u00ecm \u0111i\u1ec1u ki\u1ec7n c\u1ee7a bi\u1ebfn \u0111\u1ec3 gi\u00e1 tr\u1ecb t\u01b0\u01a1ng \u1ee9ng c\u1ee7a m\u1eabu th\u1ee9c kh\u00e1c 0.<\/p>\n\n\n\n<p>Gi\u00e1 tr\u1ecb ph\u00e2n th\u1ee9c \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh th\u00ec ta r\u00fat g\u1ecdn t\u00ednh to\u00e1n ph\u00e2n th\u1ee9c.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5 nh\u01b0 sau:<\/p>\n\n\n\n<p>Cho ph\u00e2n th\u1ee9c<\/p>\n\n\n\n<p>a) T\u00ecm \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 ph\u00e2n th\u1ee9c tr\u00ean x\u00e1c \u0111\u1ecbnh.<\/p>\n\n\n\n<p>b) T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a ph\u00e2n th\u1ee9c t\u1ea1i<\/p>\n\n\n\n<p>C\u00e1ch l\u00e0m:<\/p>\n\n\n\n<p>a) \u0110i\u1ec1u ki\u1ec7n \u0111\u1ec3 ph\u00e2n th\u1ee9c x\u00e1c \u0111\u1ecbnh l\u00e0 ( x + 1 )( x \u2013 2 ) \u22600 \u21d2 x \u2260- 1; x \u22602.<\/p>\n\n\n\n<p>b) Gi\u00e1 tr\u1ecb c\u1ee7a ph\u00e2n th\u1ee9c t\u1ea1i x = 1<\/p>\n\n\n\n<p>Ta c\u00f3:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>                   To\u00e1n h\u1ecdc c\u00f3 nh\u1eefng \u0111i\u1ec1u th\u00fa v\u1ecb \u0111\u1ec3 ch\u00fang ta kh\u00e1m ph\u00e1<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p> Ph\u00e9p chia c\u00e1c ph\u00e2n th\u1ee9c \u0111\u1ea1i s\u1ed1<\/p><\/blockquote>\n\n\n\n<p>M\u1ed9t s\u1ed1 b\u00e0i t\u1eadp to\u00e1n 8 bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 v\u00e0 c\u00e1ch gi\u1ea3i<\/p>\n\n\n\n<p>B\u00e0i 1: Cho ph\u00e2n th\u1ee9c<\/p>\n\n\n\n<p>a) T\u00ecm \u0111i\u1ec1u ki\u1ec7n c\u1ee7a x \u0111\u1ec3 gi\u00e1 tr\u1ecb c\u1ee7a ph\u00e2n th\u1ee9c \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh.<\/p>\n\n\n\n<p>b) T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a ph\u00e2n th\u1ee9c t\u1ea1i x = 1 000 000 v\u00e0 t\u1ea1i x = \u2013 1<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>a) Ta c\u00f3: x2 + x = x(x + 1)<\/p>\n\n\n\n<p>Gi\u00e1 tr\u1ecb ph\u00e2n th\u1ee9c n\u00e0y \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh v\u1edbi \u0111i\u1ec1u ki\u1ec7n x2 + x \u2260 0<\/p>\n\n\n\n<p>\u21d2 x(x + 1) \u2260 0 \u21d2 x \u2260 0 v\u00e0 x + 1 \u2260 0<\/p>\n\n\n\n<p>\u21d2 x \u2260 0 v\u00e0 x \u2260 -1<\/p>\n\n\n\n<p>b) Ta c\u00f3:<\/p>\n\n\n\n<p>B\u00e0i 2: Bi\u1ebfn \u0111\u1ed5i m\u1ed7i bi\u1ec3u th\u1ee9c sau th\u00e0nh m\u1ed9t ph\u00e2n th\u1ee9c \u0111\u1ea1i s\u1ed1<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>B\u00e0i 3: V\u1edbi gi\u00e1 tr\u1ecb n\u00e0o \u0111\u00f3 c\u1ee7a x th\u00ec gi\u00e1 tr\u1ecb c\u1ee7a m\u1ed7i ph\u00e2n th\u1ee9c sau \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh?<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>a) Ph\u00e2n th\u1ee9c x\u00e1c \u0111\u1ecbnh<\/p>\n\n\n\n<p>\u21d4 2x + 4 \u2260 0<\/p>\n\n\n\n<p>\u21d4 2x \u2260 -4<\/p>\n\n\n\n<p>\u21d4 x \u2260 -2<\/p>\n\n\n\n<p>V\u1eady v\u1edbi m\u1ecdi x \u2260 -2 th\u00ec ph\u00e2n th\u1ee9c x\u00e1c \u0111\u1ecbnh.<\/p>\n\n\n\n<p>b) Ph\u00e2n th\u1ee9c x\u00e1c \u0111\u1ecbnh<\/p>\n\n\n\n<p>\u21d4 x2 \u2013 1 \u2260 0<\/p>\n\n\n\n<p>\u21d4 (x \u2013 1)(x + 1) \u2260 0<\/p>\n\n\n\n<p>\u21d4 x \u2013 1 \u2260 0 v\u00e0 x + 1 \u2260 0<\/p>\n\n\n\n<p>\u21d4 x \u2260 1 v\u00e0 x \u2260 -1.<\/p>\n\n\n\n<p>V\u1eady v\u1edbi m\u1ecdi x \u2260 \u00b11 th\u00ec ph\u00e2n th\u1ee9c x\u00e1c \u0111\u1ecbnh<\/p>\n\n\n\n<p>B\u00e0i 4: Cho ph\u00e2n th\u1ee9c<\/p>\n\n\n\n<p>a) V\u1edbi \u0111i\u1ec1u ki\u1ec7n n\u00e0o c\u1ee7a x th\u00ec gi\u00e1 tr\u1ecb c\u1ee7a ph\u00e2n th\u1ee9c \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh ?<\/p>\n\n\n\n<p>b) R\u00fat g\u1ecdn ph\u00e2n th\u1ee9c.<\/p>\n\n\n\n<p>c) T\u00ecm gi\u00e1 tr\u1ecb c\u1ee7a x \u0111\u1ec3 gi\u00e1 tr\u1ecb c\u1ee7a ph\u00e2n th\u1ee9c b\u1eb1ng 1 ?<\/p>\n\n\n\n<p>d) C\u00f3 gi\u00e1 tr\u1ecb n\u00e0o x \u0111\u1ec3 gi\u00e1 tr\u1ecb c\u1ee7a ph\u00e2n th\u1ee9c b\u1eb1ng 0 hay kh\u00f4ng ?<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>a) Ph\u00e2n th\u1ee9c x\u00e1c \u0111\u1ecbnh<\/p>\n\n\n\n<p>\u21d4 x + 2 \u2260 0<\/p>\n\n\n\n<p>\u21d4 x \u2260 -2<\/p>\n\n\n\n<p>V\u1eady \u0111i\u1ec1u ki\u1ec7n x\u00e1c \u0111\u1ecbnh c\u1ee7a ph\u00e2n th\u1ee9c l\u00e0 x \u2260 -2.<\/p>\n\n\n\n<p>c) A = 1 \u21d4 x + 2 = 1 \u21d4 x = -1 \u2260 -2 (Th\u1ecfa m\u00e3n \u0111i\u1ec1u ki\u1ec7n)<\/p>\n\n\n\n<p>V\u1eady v\u1edbi x = -1 th\u00ec A = 1.<\/p>\n\n\n\n<p>d) A = 0 \u21d4 x + 2 = 0 \u21d4 x = -2 (Kh\u00f4ng th\u1ecfa m\u00e3n \u0111i\u1ec1u ki\u1ec7n)<\/p>\n\n\n\n<p>V\u1eady kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb n\u00e0o c\u1ee7a x \u0111\u1ec3 A = 0.<\/p>\n\n\n\n<p>B\u00e0i 5: \u0110\u1ed1 em t\u00ecm \u0111\u01b0\u1ee3c ph\u00e2n th\u1ee9c (c\u1ee7a m\u1ed9t bi\u1ebfn x) m\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh v\u1edbi m\u1ecdi gi\u00e1 tr\u1ecb c\u1ee7a x kh\u00e1c c\u00e1c \u01b0\u1edbc c\u1ee7a 2.<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>C\u00e1c \u01b0\u1edbc c\u1ee7a 2 l\u00e0 \u00b11, \u00b12.<\/p>\n\n\n\n<p>V\u1eady ph\u00e2n th\u1ee9c c\u1ea7n t\u00ecm ph\u1ea3i x\u00e1c \u0111\u1ecbnh v\u1edbi m\u1ecdi x \u2260 \u00b11; \u00b12.<\/p>\n\n\n\n<p>Ta c\u00f3 th\u1ec3 ch\u1ecdn:<\/p>\n\n\n\n<p>C\u00f3 r\u1ea5t nhi\u1ec1u \u0111\u00e1p \u00e1n kh\u00e1c.<\/p>\n\n\n\n<p>B\u00e0i 6: Th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh:<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>B\u00e0i 7: L\u00e0m c\u00e1c ph\u00e9p t\u00ednh sau:<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>B\u00e0i 8: Ch\u1ee9ng t\u1ecf r\u1eb1ng v\u1edbi m\u1ecdi x \u2260 0 v\u00e0 x \u2260 \u00b1a (a l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean), gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c l\u00e0 m\u1ed9t s\u1ed1 ch\u1eb5n.<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c ta c\u00f3:<\/p>\n\n\n\n<p>V\u1edbi a l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean th\u00ec gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c b\u1eb1ng 2a l\u00e0 m\u1ed9t s\u1ed1 ch\u1eb5n.<\/p>\n\n\n\n<p>B\u00e0i 9: a) Bi\u1ebfn \u0111\u1ed5i m\u1ed7i bi\u1ec3u th\u1ee9c sau th\u00e0nh m\u1ed9t ph\u00e2n th\u1ee9c \u0111\u1ea1i s\u1ed1:<\/p>\n\n\n\n<p>b) Em h\u00e3y d\u1ef1 \u0111o\u00e1n k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p bi\u1ebfn \u0111\u1ed5i bi\u1ec3u th\u1ee9c:<\/p>\n\n\n\n<p>th\u00e0nh ph\u00e2n th\u1ee9c \u0111\u1ea1i s\u1ed1 v\u00e0 ki\u1ec3m tra l\u1ea1i d\u1ef1 \u0111o\u00e1n \u0111\u00f3.<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>b) + D\u1ef1 \u0111o\u00e1n :<\/p>\n\n\n\n<p>Quy lu\u1eadt : Gi\u1ea3 s\u1eed vi\u1ebft c\u00e1c ph\u00e2n th\u1ee9c tr\u00ean th\u00e0nh m\u1ed9t d\u00e3y th\u00ec ph\u00e2n th\u1ee9c sau c\u00f3 t\u1eed b\u1eb1ng t\u1ed5ng c\u1ee7a t\u1eed v\u00e0 m\u1eabu c\u1ee7a ph\u00e2n th\u1ee9c \u0111\u1ee9ng li\u1ec1n tr\u01b0\u1edbc v\u00e0 m\u1eabu b\u1eb1ng t\u1eed c\u1ee7a ph\u00e2n th\u1ee9c \u0111\u1ee9ng li\u1ec1n tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n\n\n\n<p>Do \u0111\u00f3 :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Ki\u1ec3m ch\u1ee9ng :<\/li><\/ul>\n\n\n\n<p>T\u00ecm hi\u1ec3u th\u00eam t\u1ea1i Vietlearn nh\u00e9<\/p>\n\n\n\n<p>Tr\u00ean \u0111\u00e2y 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> v\u1ec1 bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 c\u0169ng nh\u01b0 c\u00e1ch gi\u1ea3i m\u1ed9t s\u1ed1 b\u00e0i to\u00e1n trong SGK To\u00e1n l\u1edbp 9. \u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam nhi\u1ec1u h\u01a1n c\u00e1c ki\u1ebfn th\u1ee9c v\u1ec1 To\u00e1n h\u1ecdc v\u00e0 nh\u1eefng m\u00f4n h\u1ecdc kh\u00e1c, b\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o \u0111\u1ecba ch\u1ec9 Vietlearn.org\/. Ch\u1eafc ch\u1eafn s\u1ebd c\u00f3 r\u1ea5t nhi\u1ec1u \u0111i\u1ec1u th\u00fa v\u1ecb.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Xem th\u00eam<\/p><\/blockquote>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn To\u00e1n h\u1ecdc lu\u00f4n c\u00f3 nh\u1eefng \u0111i\u1ec1u th\u00fa v\u1ecb m\u00e0 con ng\u01b0\u1eddi d\u00f9 c\u00f3 t\u00ecm hi\u1ec3u v\u00e0 kh\u00e1m ph\u00e1 nhi\u1ec1u th\u1ebf n\u00e0o c\u0169ng kh\u00f4ng th\u1ec3 h\u1ebft \u0111\u01b0\u1ee3c. Ng\u00e0y h\u00f4m nay, Vietlearn s\u1ebd c\u00f9ng v\u1edbi b\u1ea1n t\u00ecm hi\u1ec3u v\u1ec1 bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9 v\u00e0 bi\u1ebfn \u0111\u1ed5i c\u00e1c bi\u1ec3u th\u1ee9c h\u1eefu t\u1ec9. [&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],"tags":[],"class_list":["post-1055","post","type-post","status-publish","format-standard","hentry","category-toan-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1055","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=1055"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1055\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}