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[12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²
人气:190 ℃ 时间:2020-05-24 16:58:20
解答
[12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²
=108(X+Y)^5(Y-X)
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