因式分解1/2y^2-y+1/2
问题描述:
因式分解1/2y^2-y+1/2
(1/2)y^2-y+(1/2)
答
(½y-½)(y-1)
½y²-y+½
=½(y²-2y+1)
=½[(y-1)(y-1)]
=(½y-½)(y-1)