因式分解：(x-y)³+(y-x)
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因式分解：(x-y)³+(y-x)因式分解：(x-y)³+(y-x)因式分解：(x-y)³+(y-x)(x-y)³+(y-x)=(x-y)[(x-y)²
因式分解：(x-y)³+(y-x)
因式分解：(x-y)³+(y-x)
因式分解：(x-y)³+(y-x)
(x-y)³+(y-x)
=(x-y)[(x-y)²-1]
=(x-y)(x-y+1)(x-y-1)