(3y+2)(y-4)-3(y-2)(y-3)计算

问题描述:

(3y+2)(y-4)-3(y-2)(y-3)计算


(3y+2)(y-4)-3(y-2)(y-3)
=3y²-12y+2y-8-3(y²-5y+6)
=3y²-10y-8-3y²+15y-18
=5y-26