Question

If -4 is zero of polynomial p (x) = x ^ 2 + 11 x + k what is the value of k ?

Answer 1

Answer:

k=12

Step-by-step explanation:

p(x)= x^2 +11x+ k

x=-4

((-4)^2)+(11×-4)+k=0

(16×2)+(-44)+k=0

32-44+k=0

-12+k=0

k=12

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