Jawabanmu

2014-05-05T20:31:21+07:00
2014-05-05T20:35:18+07:00
x²-7x+12=0
(x-3)(x-4)=0
x1=3   /   x2=4
x'1=1   /   x'2=2
xkuadrat-5x+4=0