将(x-2y)^2-8(x-2y)(x+y)+16(x+y)^2分解因式
问题描述:
将(x-2y)^2-8(x-2y)(x+y)+16(x+y)^2分解因式
RT
答
(x-2y)^2-8(x-2y)(x+y)+16(x+y)^2 = [(x-2y) - 4(x+y)]^2 = 9(x+2y)^2
将(x-2y)^2-8(x-2y)(x+y)+16(x+y)^2分解因式
RT
(x-2y)^2-8(x-2y)(x+y)+16(x+y)^2 = [(x-2y) - 4(x+y)]^2 = 9(x+2y)^2