Question

if -4 is a zero of the polynomial X ² + 11X + k then K is equal to
a) 28. (b) 44
(c) 16. (d) 60​

Answer 1

Answer:

x²+11x+k

putting the the value of x= -4

(-4)²+11(-4)+k=0

16‐44+k=0

-28+k=0

k=28

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Answer 2

Answer:

28

option A

Step-by-step explanation:

-4 is a zero of polynomial so

on putting x= -4 the solution must be 0

x²+11x+k = 0

(-4)² + 11*(-4) +k = 0

16-44+k = 0

-28 + k = 0

k = 28

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