If x = - 2 is a zero of the polynomial function f (x) = 2x3 + 9x2 - 8x - 36, which of the following is another zero of f (x) ?

Select one:

a. x = 8

b. x = 4

c. x = 3

d. x = 2

Question

Dillon Mcdonald

25 December, 18:28

+1

Answers (1)

Know the Answer?

Conrad Camacho · Answer 1

F (x) = 2*x^3 + 9x^2 - 8x - 36

= 2x (x^2 - 4) + 9 (x^2 - 4)

= (2x + 9) (x^2 - 4)

= (2x + 9) (x-2) (x+2)

x = 2, - 2, - 9/2

ans. = d. x=2

If x = - 2 is a zero of the polynomial function f (x) = 2x3 + 9x2 - 8x - 36, which of the following is another zero of f (x) ?Select one:a. x = 8b. x = 4c. x = 3d. x = 2