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数学
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通分(全过程):
(1)3y分之x与2y²分之3x(2)a²b分之6c与3ab²分之c(3)2x+2y分之x+y与(x+y)²分之xy(4)4m²-9分之2mn与2m+3分之2m-3
急!
人气:153 ℃ 时间:2020-06-03 01:57:30
解答
(1) 6y²分之2y 6y²分之9x
(2)3a²b²分之18bc 3a²b²分之ac
(3)2(x+y)²分之(x+y)² 2(x+y)²分之2xy
(4)4m²-9分之2mn 4m²-9分之(2m-3)²
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