x1+x2=-5/2,
x1*x2=-6/2=-3,
1/x1+1/x2=(x1+x2)/(x1*x2)=-5/2 / (-3)=5/6,
1/x1 * 1/x2=1/(x1*x2)=-1/3,
x^2-5/6x-1/3=0,
6x^2-5x-2=0.
x1+x2=-5/2,
x1*x2=-6/2=-3,
1/x1+1/x2=(x1+x2)/(x1*x2)=-5/2 / (-3)=5/6,
1/x1 * 1/x2=1/(x1*x2)=-1/3,
x^2-5/6x-1/3=0,
6x^2-5x-2=0.