是想因式分解吧？x^5+y^5-(x^4*y+x*y^4)=(x^5-x^4*y)+(y^5-x*y^4)=x^4(x-y)+y^4(y-x)=(x-y)(x^4-y^4)=(x-y)(x^2-y^2)(x^2+y^2)=(x-y)(x-y)(x+y)(x^2+y^2)=(x+y)(x^2+y^2)(x-y)^2望采纳！有问题请追问！
