Jawabanmu

2014-05-03T13:51:45+07:00
3x^2 - x - 2 = 0
3x^2 - 3x + 2x - 2
3x (x-1) + 2 (x-1)
(3x+2) (x-1)
a = 2 b = -1
a+b = 2-1 = 1