Jawabanmu

2014-02-27T11:25:33+07:00
4x2 - 13x =-3
4x2 - 13x + 3 = 0
2(x - 1/4) x 2( x+1/4)= 0
2x - 2/4 = 0    atau     2x+2/4 =0
2x = 2/4                       2x = -2/4
x = 2/4 : 2                     x = -2/4 : 2
x = 2/4 x 1/2                x = -2/4 x 1/2
x = 1/4                          x = -1/4