$\"\"$

The expression is $\"\"$ .

$\"\"$ (Factors the denominator $\"\"$ )

$\"\"$ (Factors the numerator $\"\"$ )

$\"\"$

Exclude the values for which $\"\"$ , and the denominator cannot equal 0.

$\"\"$

Then the value of x not equal $\"\"$ . $\"\"$

The value of x not equal $\"\"$ .