{"common":{"save":0,"post_id":"6630","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6577","post_id":"6630","mon_id":"1158921","chapter_id":"1158933","question":"<p>Ph\u01b0\u01a1ng tr&igrave;nh n&agrave;o d\u01b0\u1edbi \u0111&acirc;y l&agrave; ph\u01b0\u01a1ng tr&igrave;nh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n?<\/p>","options":["<strong>A.<\/strong> 0x + 3 = 0","<strong>B.<\/strong> &ndash;5 : x + 3 = 0","<strong>C.<\/strong> 10x &ndash; 3 = 0","<strong>D.<\/strong> x&sup2; + 6 = 0"],"correct":"3","level":"1","hint":"<p>Ph\u01b0\u01a1ng tr&igrave;nh d\u1ea1ng ax + b = 0, v\u1edbi a, b l&agrave; c&aacute;c s\u1ed1 \u0111&atilde; cho v&agrave; a&nbsp;<span class=\"math-tex\">$\\ne$<\/span>&nbsp;0, \u0111\u01b0\u1ee3c g\u1ecdi l&agrave; <strong>ph\u01b0\u01a1ng tr&igrave;nh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n<\/strong> x.&nbsp;<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong> 10x &ndash;&nbsp;3 = 0<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-08-29 11:18:43","option_type":"txt","len":2},{"id":"6578","post_id":"6630","mon_id":"1158921","chapter_id":"1158933","question":"<p>Ph\u01b0\u01a1ng tr&igrave;nh n&agrave;o kh&ocirc;ng ph\u1ea3i l&agrave; ph\u01b0\u01a1ng tr&igrave;nh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$x-\\dfrac{1}{2}=0$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$-\\dfrac{1}{2}-x=0$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$3+2x=0$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{x}=0$<\/span>"],"correct":"4","level":"1","hint":"<p>Ph\u01b0\u01a1ng tr&igrave;nh d\u1ea1ng ax + b = 0, v\u1edbi a, b l&agrave; c&aacute;c s\u1ed1 \u0111&atilde; cho v&agrave; a&nbsp;&ne;&nbsp;0, \u0111\u01b0\u1ee3c g\u1ecdi l&agrave;&nbsp;<strong>ph\u01b0\u01a1ng tr&igrave;nh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n<\/strong>&nbsp;x.&nbsp;<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{1}{x}=0$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-08-29 11:21:00","option_type":"math","len":0},{"id":"6579","post_id":"6630","mon_id":"1158921","chapter_id":"1158933","question":"<p>Ph\u01b0\u01a1ng tr&igrave;nh n&agrave;o l&agrave; ph\u01b0\u01a1ng tr&igrave;nh m\u1ed9t \u1ea9n?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$x-y+2=0$<\/span> ","<strong>B.<\/strong> <span class=\"math-tex\">$xy+2=0$<\/span> ","<strong>C.<\/strong> <span class=\"math-tex\">$x-2=3x+1$<\/span> ","<strong>D.<\/strong> <span class=\"math-tex\">$x+2=y-1$<\/span> "],"correct":"3","level":"1","hint":"<p>M\u1ed9t ph\u01b0\u01a1ng tr&igrave;nh m\u1ed9t \u1ea9n x c&oacute; d\u1ea1ng A(x) = B(x), trong \u0111&oacute; v\u1ebf tr&aacute;i A(x) v&agrave; v\u1ebf ph\u1ea3i B(x) l&agrave; hai bi\u1ec3u th\u1ee9c c\u1ee7a c&ugrave;ng m\u1ed9t bi\u1ebfn x.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong> <span class=\"math-tex\">$x-2=3x+1$<\/span>&nbsp;<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-08-29 11:26:20","option_type":"math","len":0}]}