2x+2y/x-y与(x+y)²/xy 怎么通分
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2x+2y/x-y与(x+y)²/xy怎么通分2x+2y/x-y与(x+y)²/xy怎么通分2x+2y/x-y与(x+y)²/xy怎么通分最简公分母是xy(x-y)∴2x
2x+2y/x-y与(x+y)²/xy 怎么通分
2x+2y/x-y与(x+y)²/xy 怎么通分
2x+2y/x-y与(x+y)²/xy 怎么通分
最简公分母是xy(x-y)
∴2x+2y/x-y=xy(2x+2y)/xy(x-y)
(x+y)²/xy=(x+y)²(x-y)/xy(x-y)