# Precalculus Examples

Move the negative in front of the fraction.

To write as a fraction with a common denominator, multiply by .

To write as a fraction with a common denominator, multiply by .

Combine.

Combine.

Reorder terms.

Combine the numerators over the common denominator.

Factor out of .

Factor out of .

Factor out of .

Multiply by .

Multiply by .

Remove parentheses.

Add and .