Answer
$(-\infty, -5) \cup (-5, +\infty)$
Work Step by Step
The denominator cannot be zero since division of zero is undefined.
The number $-5$ makes the denominator zero.
Thus, the domain of the given function is the set of all real numbers except $-5$. In interval notation, the domain is:
$(-\infty, -5) \cup (-5, +\infty)$