x^5+x^4y-2x^3y^2-x^2y^3-xy^4+2y^5分解因式
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x^5+x^4y-2x^3y^2-x^2y^3-xy^4+2y^5分解因式x^5+x^4y-2x^3y^2-x^2y^3-xy^4+2y^5分解因式x^5+x^4y-2x^3y^2-x^2y^3-xy
x^5+x^4y-2x^3y^2-x^2y^3-xy^4+2y^5分解因式
x^5+x^4y-2x^3y^2-x^2y^3-xy^4+2y^5
分解因式
x^5+x^4y-2x^3y^2-x^2y^3-xy^4+2y^5分解因式
x^5+x^4y-2x^3y^2-x^2y^3-xy^4+2y^5
=x^3(x^2+xy-2y^2)-y^3(x^2+xy-2y^2)
=(x^2+xy-2y^2)(x^3-y^3)
=(x+2y)(x-y)(x-y)(x^2+xy+y^2)
=(x+2y)(x-y)^2(x^2+xy+y^2)
解原式=x^3(x^2+xy-2y^2)-y^3(x^2+xy-2y^2)
=(x^2+xy-2y^2)(x^3-y^3)
=(x+2y)(x-y)(x-y)(x^2+xy+y^2)
=(x+2y)(x-y)^2(x^2+xy+y^2)
因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+（x-3y)(x-5y)+(x-2y)(x-4y)
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3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2
5x^3y(x-y)^3-10x^4y^3(y-x)^2因式分解
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3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
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x(x-y)2-(y-x)3
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