计算和分解因式:1)(x-y)(x²+xy+y²)
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计算和分解因式:1)(x-y)(x²+xy+y²)计算和分解因式:1)(x-y)(x²+xy+y²)计算和分解因式:1)(x-y)(x²+xy+y
计算和分解因式:1)(x-y)(x²+xy+y²)
计算和分解因式:1)(x-y)(x²+xy+y²)
计算和分解因式:1)(x-y)(x²+xy+y²)
(x-y)(x²+xy+y²)
=x³+x²y+xy²-x²y-xy²-y³
=x³-y³