因式分解:3a(x-y)-2(y-x)的平方

问题描述:

因式分解:3a(x-y)-2(y-x)的平方

3a(x-y)-2(y-x)²=3a(x-y)-2(x-y)²=(x-y)(3a-2x+2y)

原式=3a(x-y)-2(x-y)的平方
=(x-y)[3a-2(x-y)]
=(x-y)(3a-2x+2y)

3a(x-y)-2(y-x)^2
=3a(x-y)-2(x-y)^2
=(x-y)[3a-2(x-y)]
=(x-y)(3a-2x+2y)