(x-y)³×(x－y)²×(y－x)＝

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(x-y)³×(x－y)²×(y－x)＝(x-y)³×(x－y)²×(y－x)＝(x-y)³×(x－y)²×(y－x)＝

(x-y)³×(x－y)²×(y－x)＝
(x-y)³×(x－y)²×(y－x)＝