{"common":{"save":0,"post_id":"7790","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7318","post_id":"7790","mon_id":"1159278","chapter_id":"1159282","question":"<p>B\u1ea5t ph\u01b0\u01a1ng trình nào sau \u0111ây là b\u1ea5t ph\u01b0\u01a1ng trình b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$2x+1>0$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$(x+2)(x-2)<0$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{-5x+2}{x+8} \\le 0$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$x^2+3\\ge 0$<\/span>"],"correct":"1","level":"1","hint":"<p>B\u1ea5t ph\u01b0\u01a1ng trình d\u1ea1ng ax + b > 0 (ho\u1eb7c ax + b < 0, ax + b ≥ 0, ax + b ≤ 0) trong \u0111ó a và b là hai s\u1ed1 \u0111ã cho, a ≠ 0, g\u1ecdi là b\u1ea5t ph\u01b0\u01a1ng trình b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n.<\/p>","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> <span class=\"math-tex\">$2x+1>0$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-10-06 07:58:02","option_type":"math","len":0},{"id":"7320","post_id":"7790","mon_id":"1159278","chapter_id":"1159282","question":"<p>B\u1ea5t ph\u01b0\u01a1ng trình nào sau \u0111ây là b\u1ea5t ph\u01b0\u01a1ng trình b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n?<\/p>","options":["<strong>A.<\/strong> x² + 5 > 9","<strong>B.<\/strong> x³ – 4 < 1","<strong>C.<\/strong> 4x < 3 + 3y","<strong>D.<\/strong> 3y ≥ 10 + y"],"correct":"4","level":"1","hint":"<p>B\u1ea5t ph\u01b0\u01a1ng trình d\u1ea1ng ax + b > 0 (ho\u1eb7c ax + b < 0, ax + b ≥ 0, ax + b ≤ 0) trong \u0111ó a và b là hai s\u1ed1 \u0111ã cho, a ≠ 0, g\u1ecdi là b\u1ea5t ph\u01b0\u01a1ng trình b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n.<\/p>","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 3y ≥ 10 + y<\/span><\/p><p>3y ≥ 10 + y nên 2y – 10 ≥ 0 là ph\u01b0\u01a1ng trình b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-10-06 08:02:28","option_type":"txt","len":2},{"id":"7322","post_id":"7790","mon_id":"1159278","chapter_id":"1159282","question":"<p>B\u1ea5t ph\u01b0\u01a1ng trình nào sau \u0111ây là b\u1ea5t ph\u01b0\u01a1ng trình b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$3x-\\dfrac{2}{5x}\\ge -9$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{4}-y\\le 1$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$x+\\dfrac{2}{y} \\ge -3x+1$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$0x-4\\le 4$<\/span>"],"correct":"2","level":"1","hint":"<p>B\u1ea5t ph\u01b0\u01a1ng trình d\u1ea1ng ax + b > 0 (ho\u1eb7c ax + b < 0, ax + b ≥ 0, ax + b ≤ 0) trong \u0111ó a và b là hai s\u1ed1 \u0111ã cho, a ≠ 0, g\u1ecdi là b\u1ea5t ph\u01b0\u01a1ng trình b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n.<\/p>","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{4}-y\\le 1$<\/span><\/span><\/p><p><span class=\"math-tex\">$\\dfrac{3}{4}-y\\le 1$<\/span> nên <span class=\"math-tex\">$-y -\\dfrac{1}{4} \\le 0$<\/span> là b\u1ea5t ph\u01b0\u01a1ng trình b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2024-10-06 08:05:59","option_type":"math","len":0}]}
