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用提公因式法计算:x(x-y)²-y(y-x)²
人气:100 ℃ 时间:2020-05-06 16:36:12
解答
提公因式法计算:x(x-y)²-y(y-x)²
=x(x-y)²-y(x-y)²
=(x-y)^2(x-y)
=(x-y)^3
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