Question

If -4 is a zero of p(x)=x²+11x+k,the value of k is

Answer 1

Step-by-step explanation:

p(-4)= 16 -44+k=0

=k=28

Answer 2

Step-by-step explanation:

If -4 is a zero of p(x) then p(-4)=0     {Remainder theorem}

So,

(-4)² + 11(-4) + k = 0

16 + (-44) + k = 0

16 - 44 + k = 0

-28 + k = 0

k = 28