Question

(x-y)(x²+xy+y)²怎么算啊

问题写错了 (x-y)(x²+xy+y²) 是这个题 要有详细的过程

Answer 1

(x-y)(x²+xy+y²)
=x³+x²y+xy²-x²y-xy²-y³
=x³+(1-1)x²y+(1-1)xy²-y³
=x³-y³

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Answer 2

化简是吧，很简单。
(x-y)(x²+xy+y)²
=[(x-y)(x²+xy+y²)](x²+xy+y²)
=(x³-y³)(x²+xy+y²)
=x^5 +x⁴y+x³y²-x²y³-xy⁴-y^5

x^5表示x的5次方，y^5表示y的5次方。

Answer 3

(x-y)(x²+xy+y²)
=x³+x²y+xy²-x²y-xy²-y³
=x³-y³