Multiplying Rational Expressions
After studying this lesson, you will be able to:
 Multiply rational expressions.
Steps to multiply a rational expression:
1. Cancel numerator to denominator if possible (don't cancel
parts of a binomial or trinomial)
2. Factor the numerators and denominators if possible.
3. Multiply straight across  remember, you don't need a
common denominator to multiply fractions (or rational
expressions).
Example 1

Nothing will cancel. Nothing will factor.
All we have to do is multiply. 

This is the simplified answer. 
Example 2
Example 3

We can reduce 12 and 3 and reduce the
variables 

Now, factor the second denominator. 

Cancel the identical binomials (x + 5 ) 

This is the simplified expression. 
Example 4

Factor 

Cancel the identical binomials. 

This is the simplified expression. 
Example 5

Factor 

Cancel the identical binomials. 

This is the simplified expression. 
