Question

What is the value of k in the polynomial x2 +8x +k if -2 is a zero of the polynomial?

Answer 1

if ,
(-2) is zero of polynomial then it will satisfy the eqn
${x}^{2} + 8x + k \\ {( - 2)}^{2} + 8( - 2) + k = 0 \\ 4 - 16 + k = 0 \\ k = 12$
mark as brainliest if helped

Answer 2

Answer:

7

Step-by-step explanation:

x^2+8x+k

(-2)^2+8(-2)+k = 0

4-16+k = 0

-12 + k = 0

k =12

mark as brainlist