## Find the roots for f(x) = 2×2 – 8 : x = 2 x = -2 x = 2 and x = -2 x = 2 and x = -4 *need answer soon* *must s

Question

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

## Answers ( )

Answer is x=2 or -2 and x=2 or -4

Answer:x=2 and -2

Step-by-step explanation:f(x)=2x^2-8

set the function equal to zero to solve for x

2x^2-8=0

add 8 to both sides and divide by 2

x^2=4

take the square root of both sides to get x isolated

√(x^2)=√4

x= ±2