# How do you write a rational expression with excluded values of -2 and 2?

##### 1 Answer

#### Explanation:

This is kinda long but I hope you take the time to read the explanation.

A **rational expression** is simply a fraction where the numerator and denominator are polynomials.

In a rational expression you get excluded values when **the denominator becomes equal to #0#** (because division by

**The numerator can be anything.** It could be

For these types of questions, it is actually very simple to answer problems like this. **All you have to do is plug in the values you want to exclude into the expression #(x-"value")#, then multiply all of these together**.

**Example**

What is a function with excluded values

For the numerator, we could use anything, for example

For the denominator, we plug in the excluded values into

So we have:

**Now to answer your question,** we just do the same. We want to exclude

So the answer is: