x的四次方（x-2y）+x²(2y-x)=?

x的四次方（x-2y）+x²(2y-x)=?
x的四次方（x-2y）+x²(2y-x)=?

x的四次方（x-2y）+x²(2y-x)=?
x的4次方(x-2y)+x²(2y-x)
=x的4次方(x-2y)-x²(x-2y)
=x²(x-2y)(x²-1)
=x²(x-2y)(x+1)(x-1)
明白请采纳,
有新问题请求助,

x的四次方（x-2y）+x²(2y-x)
=x^2(x-2y)(x^2-1)
=x^2(x-2y)(x+1)(x-1)