Answer:
x=1,5
Step-by-step explanation:
0 = 4(x − 3)^2 − 16
add 16 to each side
16 = 4(x − 3)^2 − 16+16
16 = 4(x − 3)^2
divide by 4
16/4 = 4/4(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+2 = x and 3-2 = x
5=x and 1=x
