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(x-y)(y-x)的二次方(x-y)的三次方等于多少
人气:452 ℃ 时间:2020-04-08 02:22:19
解答

(x-y)(y-x)²(x-y)³
=(x-y)(x-y)²(x-y)³
=(x-y)^6
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