The rational function $\"\"$

All possible values of $\"\"$ is domain of a function.

Find which number make the fraction undefined create an equation where the denominator is not equal to zero.

$\"\"$

Solve the equation $\"\"$

$\"\"$

Apply the formula difference of two squares: $\"\"$ .

$\"\"$

Apply zero product property.

$\"\"$ and $\"\"$

The domain of the function all real numbers except $\"\"$ and $\"\"$ .

Domain set $\"\"$