Question

For what value of k, is -3 a zero of the polynomial x2 + 11x + k ?

Answer 1

Answer:

One zero of this equation is given. so,

Put x = -3 in equation,

(-3)² + 11(-3)+ k =0

9- 33 + k = 0

-24 = -k

k = 24 is right ans.

Answer 2

Answer:

24

Step-by-step explanation:

Let, -3 is the zero of Polynomial So,

${x}^{2} + 11x + k \\ \\ {( - 3)}^{2} + 11( - 3) + k = 0 \\ \\ 9 - 33 + k = 0 \\ \\ - 24 = - k \\ \\ k = 24$

Hence, -3 will a zero of the polynomial (x² + 11x + k)

if k = 24 .