# Simplifying rational expressions and restrictions

## Everything You Need in One PlaceHomework problems? Exam preparation? Trying to grasp a concept or just brushing up the basics? Our extensive help & practice library have got you covered. | ## Learn and Practice With EaseOur proven video lessons ease you through problems quickly, and you get tonnes of friendly practice on questions that trip students up on tests and finals. | ## Instant and Unlimited HelpOur personalized learning platform enables you to instantly find the exact walkthrough to your specific type of question. Activate unlimited help now! |

#### Make math click 🤔 and get better grades! 💯Join for Free

Get the most by viewing this topic in your current grade. __Pick your course now__.

##### Intros

##### Examples

###### Lessons

- For each rational expression:

i) determine the non-permissible values of the variable, then

ii) simplify the rational expression - For each rational expression:

i) determine the non-permissible values of the variable, then

ii) simplify the rational expression - For each rational expression:

i) determine the non-permissible values of the variable, then

ii) simplify the rational expression - The area of a rectangular window can be expressed as $4{x^2} + 13x + 3$, while its length can be expressed as $4x + 1$.
- For each rational expression:

i) determine the non-permissible values for $y$ in terms of $x$ , then

ii) simplify, where possible.