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