$\"\"$

The expression is $\"\"$ .

Graph the function: $\"\"$ .

$\"\"$

Observe the graph:As $\"\"$ tends to $\"\"$ from left hand side, $\"\"$ approaches to $\"\"$ .

As $\"\"$ tends to $\"\"$ from right hand side, $\"\"$ approaches to $\"\"$ .

Since the left hand side limit is equal to right hand side limit, the limit is exists.

$\"\"$ . $\"\"$

Draw a table to find the value of the limit.

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$
$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$

Observe the table:

The value of $\"\"$ at $\"\"$ is $\"\"$ .

$\"\"$

The expression is $\"\"$ .

$\"\"$

Cancel common terms.

$\"\"$

$\"\"$ . $\"\"$

$\"\"$ .