
X^3-Y^3-X^2Y+XY^2=什么 分解因式
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x^3-y^3-x^2y+xy^2
=x^3-y^3-xy(x-y)
=(x-y)(x^2+xy+y^2)-xy(x-y)
=(x-y)(x^2+xy+y^2-xy)
=(x-y)(x^2+y^2)
=x^3-y^3-xy(x-y)
=(x-y)(x^2+xy+y^2)-xy(x-y)
=(x-y)(x^2+xy+y^2-xy)
=(x-y)(x^2+y^2)
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