Theory

Raising an equation to a power

When rewriting equations it's important to make the the same operation on both sides to ensure that the equality still holds. So, if one side is raised to a power, the same operation must be performed on the other side. In the equation sqrt(x)=8, both sides can be raised to the power of 2. (sqrt(x))^2=8^2 However, be aware of creating extraneous when solving radical equations this way.
Exercises