$\"\"$

The rational function is $\"\"$ .

Rewrite the rational function.

$\"\"$

Find the domain of $\"\"$ :

The denominator of the function is not equal to zero.

$\"\"$

$\"\"$ .

The domain of rational function $\"\"$ is all real numbers except $\"\"$ .

The domain is $\"\"$ .

$\"\"$

The domain of function $\"\"$ is $\"\"$ .