Question

If+alpha+and+bita+are+the+zeros+of+polynomial+x^2-x-k+such+that+alpha+-bita+=9+find+k

Answer 1

Answer:k=2

Explanation:

Alpha - bita = (alpha +bita )^2-4alphaxbita

Substituting values we get ,

Alpha +bita = -b/a = 1

And alpha x bita = C/a = k. , then,

1^2 +4k =9

K=2