The inequality is $\"\"$ .

Factor the related equation $\"\"$ .

$\"\"$

$\"\"$ .

Now, there are two ways this product could be less than zero. One factor must be negative and one must be positive.

Case 1: $\"\"$

$\"\"$

There are NO values for which this situation is true.

Case 2: $\"\"$

$\"\"$

Note that the original inequality contains a $\"\"$ symbol. This means that the solution set contain the endpoints of the intervals.

Solution set of the inequality is $\"\"$ .

The solution set in the interval notation is $\"\"$ .

$\"\"$

Observe the graph the closed circle means $\"\"$ and $\"\"$ are include in the solution set.

Set notation: $\"\"$ .

Interval notation: $\"\"$ .