Question

Solve using the square root method

Answer 1

x = 5

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:

1. 5(x-3)^2 = 20 (transfering 20 to the right side of the equation)
2. (x-3)^2 = 20/5 and that is equal to 4, now find the root for both sides
3. x-3 = 2 add 3 to both sides
4. x = 5