因式分解 (x-2y)^2+2(x+2y)(x-2y)

问题描述:

因式分解 (x-2y)^2+2(x+2y)(x-2y)

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