Our restriction here is that the denominator of a fraction can never
be equal to 0. So to find our domain, we want to set the denominator
"not equal" to 0 to restrict those values.

*Restrict values that cause den. to be 0

*"Solve" for x

*"Solve" for x

Our domain is all real numbers except -5 and 5 because they
both make the denominator equal to 0, which would not give us a real number
answer for our function.