4（2x+1）²=9 3（2x+1）²-2x（2x+1）=0急求啊!

4（2x+1）²=9
3（2x+1）²-2x（2x+1）=0
急求啊!

4（2x+1）²=9
(2x+1)²=9/4
2x+1=-3/2,2x+1=3/2
x=-5/4,x=1/4
3（2x+1）²-2x（2x+1）=0
(2x+1)[3(2x+1)-2x]=0
(2x+1)(4x+3)=0
x=-1/2,x=-3/4