(x-y)·(y-x)的立方·(x-y)的平方·(y-x)

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(x-y)·(y-x)的立方·(x-y)的平方·(y-x)(x-y)·(y-x)的立方·(x-y)的平方·(y-x)(x-y)·(y-x)的立方·(x-y)的平方·(y-x)(x-y)(y-x)

(x-y)·(y-x)的立方·(x-y)的平方·(y-x)
(x-y)·(y-x)的立方·(x-y)的平方·(y-x)

(x-y)·(y-x)的立方·(x-y)的平方·(y-x)
(x-y)(y-x)³(x-y)²(y-x)
=(x-y)[-(x-y)³](x-y)²[[-(x-y)]
=(x-y)(x-y)³(x-y)²(x-y)
=(x-y)的(1+3+2+1)
=(x-y)的7次方
明白请采纳,
有新问题请求助,

(x-y)的七次方