$\"\"$

The inequality is $\"\"$ .

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

Case 1 :

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

The solution set is $\"\"$ .

Case 2 :

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

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

There are no values exist in the interval.

$\"\"$

The solution set is $\"\"$ .