Question

If alpha and beta are the zeros of the polynomial x2-6x+k,find the value of k such that alpha2+beta2=40

Answer 1

here is your answer

if alpha and beta are zeros of polynomial f(x)=x2-6x+k find value of k such that alpha2 +beta2 =40.

hope its help full to you

Answer 2

put the alpha and beta in the f(x) and you will get 2 equation... on subtraction you get one equation and on multiplying you get another.

now solve these 2 to get a quadratic equation in K. solving it you get
k=-2