x^4-3x^3+x^2y+2x^2-2xy因式分解
问题描述:
x^4-3x^3+x^2y+2x^2-2xy因式分解
答
x^4-3x^3+x^2y+2x^2-2xy=(x^4-3x^3+2x^2)+(x^2y-2xy)
=x^2(x-1)(x-2)+xy(x-2)
=x(x-2)(x^2-x+y)