分解因式:(1)36x2+12xy+y2=_; (2)(x+2)(x-6)+16=_.
问题描述:
分解因式:(1)36x2+12xy+y2=______;
(2)(x+2)(x-6)+16=______.
答
(1)36x2+12xy+y2=(6x+y)2;
(2)(x+2)(x-6)+16=x2-4x-12+16=x2-4x+4=(x-2)2.