问题
解答题
解方程:3(2x-1)2=2-4x.
答案
3(2x-1)2=2-4x,
3(2x-1)2+4x-2=0,
3(2x-1)2+2(2x-1)=0,
(2x-1)[3(2x-1)+2]=0
(2x-1)(6x-1)=0,
2x-1=0,6x-1=0,
解得:x1=
,x2=1 2
.1 6
解方程:3(2x-1)2=2-4x.
3(2x-1)2=2-4x,
3(2x-1)2+4x-2=0,
3(2x-1)2+2(2x-1)=0,
(2x-1)[3(2x-1)+2]=0
(2x-1)(6x-1)=0,
2x-1=0,6x-1=0,
解得:x1=
,x2=1 2
.1 6