# Rational Expressions

### Multiplying and Dividing Rational Expressions

#### Multiplying Rational Expressions

To multiply two rational expressions, factor them. Then multiply their numerators and denominators, crossing out any factors that appear in both the numerator and the denominator of the answer.

Example 1: × = ?

= ×
=
= .

Example 2: × = ?

= ×
=
= .

#### Dividing Rational Expressions

To divide by a rational expression, multiply by its reciprocal.

Example 1: ÷ = ?

= ×3x 2-2xx 2-2x+4
= ×x(3x-2)x 2-2x+4
=
= .

Example 2: ÷ = ?

= ×
= ×
=
= .

## Take a Study Break

### Star Trek gets SEXY

Chris Pine and Zoe Saldana heat up the red carpet!

### Are you afraid of relationships?

Auntie SparkNotes can help!

### Sexy starlet style

See every single look from the Met Gala!

### Geeky Actors: Then and Now

Travel back in time!

### Villains We Want These Actresses to Play

From super cute to super bad!

### 10 Movies Better Than Their Books

What do you think?

### How To Look Like J-Law...

When you don't look like J-Law.

### 12 Scientific Inaccuracies in Into Darkness

What did Star Trek get wrong?

## The Book

### Read What You Love, Anywhere You Like

Get Our FREE NOOK Reading Apps