x^5y-x^3y+2x^2y-xy分解因式

分类: 作业答案 • 2022-04-18 18:02:41

问题描述：

答

=xy[x^4-(x^2-2x+1)]
=xy[x^4-(x-1)^2]
=xy(x^2+x-1)(x^2-x+1

答

x^5y-x^3y+2x^2y-xy
=xy(x^4-x^2+2x-1)
=xy[x^4-(x^2-2x+1)]
=xy[x^4-(x-1)^2]
=xy(x^2-x+1)(x^2+x-1)