# Precalculus Examples

Since does not contain the variable to solve for, move it to the right side of the equation by subtracting from both sides.

Add and to get .

To remove the radical on the left side of the equation, square both sides of the equation.

Simplify the left side of the equation.

Remove parentheses around .

Raising to any positive power yields .

Verify each of the solutions by substituting them back into the original equation and solving. In this case, all solutions were found to be valid.