x^5y-x^3y+2x^2y-xy分解因式

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x^5y-x^3y+2x^2y-xy分解因式x^5y-x^3y+2x^2y-xy分解因式x^5y-x^3y+2x^2y-xy分解因式x^5y-x^3y+2x^2y-xy=xy(x^4-x^2+2x-1

x^5y-x^3y+2x^2y-xy分解因式
x^5y-x^3y+2x^2y-xy分解因式

x^5y-x^3y+2x^2y-xy分解因式
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)

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