因式分解:x3-y3-x2y+xy2

问题描述:

因式分解:x3-y3-x2y+xy2
1个回答 分类:数学 2014-09-19

问题解答:

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