Jawabanmu

2014-06-04T14:07:23+07:00
(2x - 3)2 - 12 = 0
4x - 6 -12 = 0
4x - 18 = 0
4x = 18
X = 18/4
x = 4,5
2014-06-04T14:09:03+07:00
2x - 3.2 - 12 = 0
2x - 6 -12 =0
2x = 6 + 12
2x = 18
x =18 : 2 = 9

sory y... klo salah