Question

Identify the zeros of f(x) = (x + 9)(x − 4)(6x + 1).

Answer 1

x = - 9, x = -
`(1)/(6)`, x = 4

Explanation:

To obtain the zeros, equate f(x) to zero, that is

(x + 9)(x - 4)(6x + 1) = 0

Equate each factor to zero and solve for x

x + 9 = 0 ⇒ x = - 9

x - 4 = 0 ⇒ x = 4

6x + 1 = 0 ⇒ 6x = - 1 ⇒ x = -
`(1)/(6)`