{"common":{"save":0,"post_id":"6527","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5676","post_id":"6527","mon_id":"1158921","chapter_id":"1158927","question":"<p>\u0110\u01a1n th\u1ee9c 2x(–3)yz có h\u1ec7 s\u1ed1 là<\/p>","options":["<strong>A.<\/strong> –6","<strong>B.<\/strong> 6","<strong>C.<\/strong> –1","<strong>D.<\/strong> 2"],"correct":"1","level":"2","hint":"<p>Trong m\u1ed9t \u0111\u01a1n th\u1ee9c thu g\u1ecdn, ph\u1ea7n s\u1ed1 g\u1ecdi là h\u1ec7 s\u1ed1, ph\u1ea7n còn l\u1ea1i g\u1ecdi là ph\u1ea7n bi\u1ebfn.<\/p>","answer":"<p>Ta có 2x(–3)yz = –6xyz.<\/p><p>\u0110\u01a1n th\u1ee9c này có h\u1ec7 s\u1ed1 là –6.<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"> <strong>A.<\/strong> –6<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-06-27 14:37:06","option_type":"txt","len":1},{"id":"5679","post_id":"6527","mon_id":"1158921","chapter_id":"1158927","question":"<p>\u0110\u01a1n th\u1ee9c <span class=\"math-tex\">$\\dfrac{5}{4}x^24x^3y^2$<\/span> có<\/p>","options":["<strong>A.<\/strong> h\u1ec7 s\u1ed1 <span class=\"math-tex\">$\\dfrac{5}{4}$<\/span> , b\u1eadc 7.","<strong>B.<\/strong> h\u1ec7 s\u1ed1 5, b\u1eadc 7.","<strong>C.<\/strong> h\u1ec7 s\u1ed1 4, b\u1eadc 7","<strong>D.<\/strong> h\u1ec7 s\u1ed1 5 b\u1eadc 6."],"correct":"2","level":"2","hint":"","answer":"<p>Ta có <span class=\"math-tex\">$\\dfrac{5}{4}x^24x^3y^2$<\/span> = <span class=\"math-tex\">$5x^5y^2$<\/span> có h\u1ec7 s\u1ed1 5 và b\u1eadc 7.<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>B.<\/strong> h\u1ec7 s\u1ed1 5, b\u1eadc 7.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-06-28 11:27:59","option_type":"math","len":0},{"id":"5681","post_id":"6527","mon_id":"1158921","chapter_id":"1158927","question":"<p>\u0110\u01a1n th\u1ee9c 2x(–3)yx³ có ph\u1ea7n bi\u1ebfn là<\/p>","options":["<strong>A.<\/strong> xy","<strong>B.<\/strong> 2xyx³","<strong>C.<\/strong> <span class=\"math-tex\">$x^4y$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$-x^4y$<\/span>"],"correct":"3","level":"2","hint":"<p>Trong m\u1ed9t \u0111\u01a1n th\u1ee9c thu g\u1ecdn, ph\u1ea7n s\u1ed1 g\u1ecdi là h\u1ec7 s\u1ed1, ph\u1ea7n còn l\u1ea1i g\u1ecdi là ph\u1ea7n bi\u1ebfn.<\/p>","answer":"<p>Ta có 2x(–3)yx³ = <span class=\"math-tex\">$-6x^4y$<\/span> có ph\u1ea7n bi\u1ebfn là <span class=\"math-tex\">$x^4y$<\/span> .<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>C.<\/strong> <span class=\"math-tex\">$x^4y$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-06-28 11:32:36","option_type":"math","len":0}]}
