Question

a,b,c are zeroes of cubic polynomial kx3-5x+9. 8f a3+b3+c3=27 . find k

Answer 1

3(a+b+c)=27
a+b+c=9
So sum of zeroes= 9
Hence according to theory of equations sum of roots =S1
9/1=0/k
K = 0
I think its the answer
If iam wrong ignore it