X三次方-xy²+x²y-y三次方分解因式

发布时间:2021-03-15 18:24:10

X三次方-xy²+x²y-y三次方分解因式

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X三次方-xy²+x²y-y三次方
X^3-xy²+x²y-y^3
=x^2(x+y)-y^2(x+y)
=(x+y)(x^2-y^2)
=(x+y)(x-y)(x+y)
=(x+y)^2(x-y)
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