Question

for the quadratic polynomial x2+x-4 find the value of 1/alfa+1/beta-2alfa beta

Answer 1

alpha+bita=-b/a

=-1/1

=-1

alpha×bita=c/a

=-4/1

=-4

1/alpha+1/bita-2alphabita

bita+alpha/alphabita-2(-4)

-1/-4+8

1/4+8

33/4