Question

If one zero of the polynomial 5x2-(k+2)x+3 is negative of the other, then find k

Answer 1

Answer:

let the one zero of the polynomial is a

therefore the other is -a

polynomial=5x^2-(k+2)x+3

the sum of the zeros

a-a=-(k+2)/5

0=-k-2/5

-k-2=0

k=-2