Answer:
x=1, 5
Explanation:
0 = 4(x - 3)^2 - 16
Add 16 to each side
0+16 = 4(x - 3)^2 - 16+16
16 = 4(x - 3)^2
Divide each side by 4
16/4 = (x-3)^2
4 = (x-3)^2
Take the square root of each side
±sqrt(4) = sqrt( (x-3)^2)
±2 = (x-3)
Add 3 to each side
3±2 = x-3+3
3+2 =x so x=5
3-2 =x so x=1