Question

If - 3 is a root of quadratic equation 2x^2 + px - 15 = 0, while the quadratic equation x^2 - 4px + k = 0 has equal roots

Answer 1

k=3
Put -3 in eqn. 1
We get p=1
Then put p and x(since roots are same therefore x=-3) in eqn 2
We get k=3