{"common":{"save":0,"post_id":"6613","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6507","post_id":"6613","mon_id":"1158921","chapter_id":"1158930","question":"<p>T&igrave;m P bi\u1ebft&nbsp;<span class=\"math-tex\">$P.\\dfrac{-10x^3y^2}{-21ab}=\\dfrac{-25x^4y^3}{14a^2}$<\/span>&nbsp;.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{-15bxy}{4a}$<\/span>","<strong>B. <\/strong><span class=\"math-tex\">$\\dfrac{15bxy}{4a}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{15xy}{4a}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{-15bxy}{4}$<\/span>"],"correct":"1","level":"2","hint":"","answer":"<p><span class=\"math-tex\">$P.\\dfrac{-10x^3y^2}{-21ab}=\\dfrac{-25x^4y^3}{14a^2}$<\/span><\/p><p><span class=\"math-tex\">$P = \\dfrac{-25x^4y^3}{14a^2}:\\dfrac{-10x^3y^2}{-21ab}$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{-25x^4y^3}{14a^2}.\\dfrac{-21ab}{-10x^3y^2}$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{5xy}{2a}.\\dfrac{-3b}{2}$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{-15bxy}{4a}$<\/span><\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{-15bxy}{4a}$<\/span>&nbsp;.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-08-27 00:13:47","option_type":"math","len":0},{"id":"6508","post_id":"6613","mon_id":"1158921","chapter_id":"1158930","question":"<p>T&igrave;m P bi\u1ebft&nbsp;<span class=\"math-tex\">$P:\\dfrac{2x}{5y}=\\dfrac{5by}{12ax}$<\/span>&nbsp;.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{-b}{6a}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{6a}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{a}{6}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{b}{6a}$<\/span>"],"correct":"4","level":"2","hint":"","answer":"<p><span class=\"math-tex\">$P:\\dfrac{2x}{5y}=\\dfrac{5by}{12ax}$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{5by}{12ax}.\\dfrac{2x}{5y}$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{b}{6a}.\\dfrac{1}{1}$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{b}{6a}$<\/span><\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{b}{6a}$<\/span>&nbsp;.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-08-27 00:18:24","option_type":"math","len":0},{"id":"6510","post_id":"6613","mon_id":"1158921","chapter_id":"1158930","question":"<p>T&igrave;m P bi\u1ebft&nbsp;<span class=\"math-tex\">$\\dfrac{-25x^3y^5}{3ab^2}:P=15xy^2$<\/span>&nbsp;.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{5xy}{9ab}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{-5x^2y}{9ab}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{-5x^2y^3}{9ab^2}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{5x^2y^3}{9ab^2}$<\/span>"],"correct":"3","level":"2","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{-25x^3y^5}{3ab^2}:P=15xy^2$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{-25x^3y^5}{3ab^2}:15xy^2$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{-25x^3y^5}{3ab^2}.\\dfrac{1}{15xy^2}$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{-5x^2y^3}{3ab^2}.\\dfrac{1}{3}$<\/span><\/p><p><span class=\"math-tex\">$P=\\dfrac{-5x^2y^3}{9ab^2}$<\/span><\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; <span style=\"color:#16a085;\">&nbsp;<strong>C.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{-5x^2y^3}{9ab^2}$<\/span>&nbsp;.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-08-27 00:25:19","option_type":"math","len":0}]}