# Chapter 6 - Section 6.1 - Rational Functions and Multiplying and Dividing Rational Expressions - Exercise Set: 11

The domain is all real numbers except $x\ne-2$, and $x\ne2$.

#### Work Step by Step

Restrictions in a domain occur when any value of $x$ results in an zero in the denominator. To find this value, set the expression in the denominator equal to zero, and solve. $x^{2}-4=0$ $(x+2)(x-2)=0$ Factor and solve $x=-2$ and $x=2$ Thus, the domain is all real numbers except $x\ne-2$, and $x\ne2$.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.