Question

If A and B are the zeroes of quadretic
Polynomial F(x) = x2-x-4, find the value of. 1/a + 1/b - ab​

Answer 1

Answer:

let the zeroes be a and b

a+b=1

ab=-4

1/a+1/b-ab=(a+b)/ab - ab=1/-4 +4=4-1/4= 15/4

Step-by-step explanation: