Question

find the value of k for x = ( - a ) is the solution of ; x²+2 ax -k =0​

Answer 1

Step-by-step explanation:

x=-a is a solution of the polynomial.

p(x)= x^{2} +2ax-k

So, p(-a)= a^2-2a^2-k = 0

-a^2-k=0

k=-a^2

Thus, k=-a^2

mark me as brilliant