(2y+1)²+3(2y+1)+2=0 用因式分解法解方程
问题描述:
(2y+1)²+3(2y+1)+2=0 用因式分解法解方程
答
(2y+1)²+3(2y+1)+2=0
((2y+1)+1)((2y+1)+2)=0
(2y+2)(2y+3)=0
2y+2=0或2y+3=0
y=-1或y=-3/2