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