Question

If x=−4 is a solution to the equation x2+11x+K=0 , then K= ?

Answer 1

Answer: K = 28

Explanation:

x^2 + 11x + K = 0; where x = -4

Substitute the value of ‘x’ in Equation :-
= (-4)^2 + 11(-4) + K = 0
= 16 + -44 + K = 0
= -44 + K = -16
=> K = -16 + 44 = 28

Therefore, K = 28

Answer 2

x^2 + 11x + k = 0

(-4) ^2 + 11 (-4) + k = 0

16 - 44 + k = 0

-28 + k = 0

K = 28

Hope Helpful ~