# How do you simplify and restricted value of #(y^2-16)/(y^2+16)#?

##### 1 Answer

Aug 27, 2017

See a solution process below:

#### Explanation:

We can simplify the numerator using this special case for quadratics:

Because we cannot divide by

However, because a number squared will always be non-negative (0 or positive), the

And then, adding

Therefore,