When multiplying and diving rational expressions, we can take the rational expressions and factor them, then find the restrictions, remove any common factors, and multiply through.

It is important to factor first then find the restrictions. Restrictions are there to find terms for the variables that could lead to having a 0 in the denominator. That is why restrictions are found by = the factor to 0 and finding the answer for the variable.

Next thing to note is that everything is always fully factored. This helps cancel out factors. After this, just multiply through. Factors can be left in factored form.