Question

Solve by taking square roots x 2 - 2 = 79

Answer 1

9

Explanation:

x^2 - 2 = 79

The first step is to get rid of the 2 on the left side. You do this by adding two on both sides. You should then get x^2 = 81.

Now, you have the just take the square root of 81, which is 9.