Answer:
x = -11,11
Explanation:
G(x)=4x^2-484
To find the zero's, set the function equal to zero
0 = 4x^2 - 484
Add 484 to each side
484 = 4x^2 -484+484
484 = 4x^2
Divide each side by 4
484/4 = 4x^2/4
121 = x^2
Take the square root of each side
sqrt(121) = sqrt(x^2)
±11 =x
x = -11,11