Answer:
x = 5
Step-by-step explanation:
5(x-3)^2 - 20 = 0 we can find the value of x by sorting out the number one by one and leaving x alone on one side:
- 5(x-3)^2 = 20 (transfering 20 to the right side of the equation)
- (x-3)^2 = 20/5 and that is equal to 4, now find the root for both sides
- x-3 = 2 add 3 to both sides
- x = 5
