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12y(x-y)^2-8(x-y)^3=?
人气:325 ℃ 时间:2020-10-02 01:37:51
解答
12y(x-y)²-8(x-y)³
=4(x-y)²[3y-2(x-y)]
=4(x-y)²(5y-2x)谢谢你了。不客气!
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