x□—2x—xy+2y怎么化简

问题描述:

x□—2x—xy+2y怎么化简

x^2—2x—xy+2y
【=x^2-xy-2(x-y)
=x(x-y)-2(x-y)
=(x-y)(x-2)

是x²吧!不是化简,是因式分解吧!
x²-2x-xy+2y
=x(x-2)-y(x-2)
=(x-y)(x-2)

x^2吧

x^2-2x-xy+2y
=x(x-2)-y(x-2)
=(x-2)(x-y)