Jawabanmu

2013-12-13T09:40:21+07:00
X1+x2=-2+1/2=-3/2
X1.X2=-2x1/2=-1
terus masuk dah  x^{2} -(-3/2)x+(-1)   semuanya kali 2
                          2 x^{2} +3x-2=0