{"common":{"save":0,"post_id":"7796","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7377","post_id":"7796","mon_id":"1159278","chapter_id":"1159282","question":"<p>B\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh n&agrave;o d\u01b0\u1edbi \u0111&acirc;y l&agrave; b\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{x}-1&gt;0$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{3}x+2&lt;0$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$x^2&gt;0$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$0x+3&gt;0$<\/span>"],"correct":"2","level":"1","hint":"<p>B\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n l&agrave; b\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh c&oacute; d\u1ea1ng:&nbsp;<span class=\"math-tex\">$ax+b\\ge0;ax+b\\le0;ax+b&gt;0;ax+b&lt;0$<\/span>, trong \u0111&oacute; a, b l&agrave; c&aacute;c s\u1ed1 \u0111&atilde; cho v&agrave; a&nbsp;<span class=\"math-tex\">$\\ne$<\/span>&nbsp;0.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{1}{3}x+2&lt;0$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-10-06 10:24:09","option_type":"math","len":0},{"id":"7378","post_id":"7796","mon_id":"1159278","chapter_id":"1159282","question":"<p>B\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh n&agrave;o sau \u0111&acirc;y l&agrave; b\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$2x+1&gt;(2x+4)x$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$2x-3+5x&lt; x-1+6$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$2x^2-2x-1&gt;4x-x^2+3$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$x^2+2x+1=0$<\/span>"],"correct":"2","level":"1","hint":"<p>B\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n l&agrave; b\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh c&oacute; d\u1ea1ng:&nbsp;<span class=\"math-tex\">$ax+b\\ge0;ax+b\\le0;ax+b&gt;0;ax+b&lt;0$<\/span>, trong \u0111&oacute; a, b l&agrave; c&aacute;c s\u1ed1 \u0111&atilde; cho v&agrave; a&nbsp;<span class=\"math-tex\">$\\ne$<\/span>&nbsp;0.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$2x-3+5x&lt; x-1+6$<\/span>.<\/span><\/p><p>Ta c&oacute;&nbsp;<span class=\"math-tex\">$2x-3+5x&lt; x-1+6$<\/span>&nbsp;hay&nbsp;<span class=\"math-tex\">$6x-8&lt;0$<\/span>&nbsp;l&agrave; b\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-10-06 10:27:30","option_type":"math","len":0},{"id":"7380","post_id":"7796","mon_id":"1159278","chapter_id":"1159282","question":"<p>Cho b\u1ea5t ph\u01b0\u01a1ng tr&igrave;nh 2x &ndash; 5 &gt; 7, ph&eacute;p bi\u1ebfn \u0111\u1ed5i n&agrave;o sau \u0111&acirc;y l&agrave; \u0111&uacute;ng?<\/p>","options":["<strong>A.<\/strong> 2x &gt; 7 &ndash; 5","<strong>B.<\/strong> 2x &gt; 7 + 5","<strong>C.<\/strong> 2x &gt; 7.5","<strong>D.<\/strong> 2x &gt; 5 &ndash; 7"],"correct":"2","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> 2x &gt; 7 + 5.<\/span><\/p><p>Ta c&oacute;: <span class=\"math-tex\">$2x-5>7$<\/span>&nbsp;hay&nbsp;<span class=\"math-tex\">$2x>7+5$<\/span>&nbsp;(chuy\u1ec3n v\u1ebf&nbsp;&ndash; 5 \u0111\u1ed5i d\u1ea5u th&agrave;nh + 5).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-10-06 10:30:34","option_type":"txt","len":2}]}