{"common":{"save":0,"post_id":"1395","level":2,"total":20,"point":5,"point_extra":0},"segment":[{"id":"1071","post_id":"1395","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <span class='basic_left'> <i>Vi\u1ebft bi\u1ec3u th\u1ee9c \u0111\u1ea1i s\u1ed1 bi\u1ec3u th\u1ecb di\u1ec5n \u0111\u1ea1t sau: <\/i> N\u1eeda t\u1ed5ng c\u00e1c b\u00ecnh ph\u01b0\u01a1ng c\u1ee7a hai s\u1ed1 $a$ v\u00e0 $b$ <\/span>","select":["A. $\\dfrac{(a+b)^2}{2}$","B. $\\dfrac{a^2+b^2}{2}$","C. $(a+b)^2$","D. $a^2+b^2$"],"explain":"<span class='basic_left'>Ta di\u1ec5n \u0111\u1ea1t c\u00e1c bi\u1ec3u th\u1ee9c \u1edf t\u1eebng \u0111\u00e1p \u00e1n: <br\/> $\\dfrac{(a+b)^2}{2}$ l\u00e0 ''n\u1eeda b\u00ecnh ph\u01b0\u01a1ng c\u1ee7a t\u1ed5ng hai s\u1ed1 $a$ v\u00e0 $b$'' <br\/> $\\dfrac{a^2+b^2}{2}$ l\u00e0 ''n\u1eeda t\u1ed5ng c\u00e1c b\u00ecnh ph\u01b0\u01a1ng c\u1ee7a hai s\u1ed1 $a$ v\u00e0 $b$'' <br\/> $(a+b)^2$ l\u00e0 ''b\u00ecnh ph\u01b0\u01a1ng c\u1ee7a t\u1ed5ng hai s\u1ed1 $a$ v\u00e0 $b$'' <br\/> $a^2+b^2$ l\u00e0 ''t\u1ed5ng c\u00e1c b\u00ecnh ph\u01b0\u01a1ng c\u1ee7a hai s\u1ed1 $a$ v\u00e0 $b$'' <br\/><span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n l\u00e0 B.<\/span><\/span>","column":2}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:55"},{"id":"1072","post_id":"1395","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" <span class='basic_left'> Bi\u1ec3u th\u1ee9c n\u00e0o sau \u0111\u00e2y bi\u1ec3u th\u1ecb chu vi h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 hai c\u1ea1nh d\u00e0i $x$ v\u00e0 $y:$ <\/span>","select":["A. $xy$","B. $4xy$","C. $2xy$","D. $2(x+y)$"],"hint":"Chu vi h\u00ecnh ch\u1eef nh\u1eadt b\u1eb1ng hai l\u1ea7n t\u1ed5ng chi\u1ec1u d\u00e0i v\u00e0 chi\u1ec1u r\u1ed9ng c\u1ee7a n\u00f3","explain":"<span class='basic_left'>Chu vi h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 hai c\u1ea1nh l\u00e0 $x$ v\u00e0 $y$ vi\u1ebft th\u00e0nh bi\u1ec3u th\u1ee9c \u0111\u1ea1i s\u1ed1 l\u00e0: $2(x+y)$<br\/><span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n l\u00e0 D.<\/span><\/span>","column":4}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:55"},{"id":"1073","post_id":"1395","mon_id":"0","chapter_id":"0","question":"Kh\u1eb3ng \u0111\u1ecbnh sau \u0111\u00e2y \u0110\u00fang hay Sai","options":{"time":24,"part":[{"title":"Kh\u1eb3ng \u0111\u1ecbnh sau \u0111\u00e2y \u0110\u00fang hay Sai","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <span class='basic_left'> Bi\u1ec3u th\u1ee9c $5a-6b$ di\u1ec5n \u0111\u1ea1t b\u1eb1ng l\u1eddi l\u00e0: <b> Hi\u1ec7u c\u1ee7a $5$ l\u1ea7n $a$ v\u1edbi $6$ l\u1ea7n $b$ <\/b> <\/span>","select":["\u0110\u00fang","Sai "],"explain":"<span class='basic_left'> Kh\u1eb3ng \u0111\u1ecbnh tr\u00ean l\u00e0 \u0111\u00fang. <br\/><span class='basic_pink'> V\u1eady \u0111\u00e1p \u00e1n l\u00e0 \u0110\u00fang.<\/span><\/span>","column":2}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:55"}]}