Question

If -1 is the zero of the polynomial x²+8x+k then the value of k is
(a) -7
(b) 7
(c) -9
(d) 9
​

Answer 1

Answer:

7

Step-by-step explanation:

while substituting -1 to the equation

(-1)² + 8(-1) + k = 0

1 - 8 + k = 0

-7 + k = 0

k = 7

Hopefully

Brainliest