This week in precalc 11 we learned how to add, subtract, multiply and divide rational expressions. In this unit, rational expressions are complex-looking fractions with variables. I will be focusing on how to multiply these rational expressions
Working with rational expressions is no different than working with regular fractions. In regular fractions, we multiply across and simplify where possible.
Example: 
- simplify
- multiply across
- set restrictions (non permissible value)
- cancel things out
Example: 
- factor if possible
- cancel things out
- multiply
- set restrictions
- bring down the other expression and do the same