Question

Factor to find the zeros of the function defined by the quadratic expression.

2x2 − 18x + 36

A)x = 3 or x = 6
B)x = 3 or x = −6
C)x = −3 or x = 6
D)x = −3 or x = −6

Answer 1

The answer is A) x = 3 or x = 6

Explanation:

Answer 2

Hi there! The answer is A) x = 3 or x = 6


`2 {x}^(2) - 18x + 36 = 0`
Divide by 2.


`{x}^(2) - 9x + 18 = 0`
Factor.


`(x - 3)(x - 6) = 0`
Use the rule AB = 0 gives A = 0 or B = 0


`x - 3 = 0 \: \: or \: \: x - 6 = 0 \\ x = 3 \: \: \: \: \: \: \: \: \: or \: \: x = 6`

The answer is A) x = 3 or x = 6