# Precalculus Examples

Step 1

Step 1.1

Subtract from both sides of the equation.

Step 1.2

Subtract from .

Step 2

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

Step 3

Step 3.1

Use to rewrite as .

Step 3.2

Simplify the left side.

Step 3.2.1

Simplify .

Step 3.2.1.1

Multiply the exponents in .

Step 3.2.1.1.1

Apply the power rule and multiply exponents, .

Step 3.2.1.1.2

Cancel the common factor of .

Step 3.2.1.1.2.1

Cancel the common factor.

Step 3.2.1.1.2.2

Rewrite the expression.

Step 3.2.1.2

Simplify.

Step 3.3

Simplify the right side.

Step 3.3.1

Raising to any positive power yields .