The inequality is .

The radical is defined for .

The radical   is defined for .

Consider .

Consider .

.

The domain of the equation is restricted to .

Now consider the original inequality equation .

Squaring on both sides.

Make sure to completely isolate the radical before squaring both sides of the inequality. Note change in sign.

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Now squaring on both sides.

.

.

.

.

.

Consider .

The above equation is in the form of .

Where .

The quadratic formula is .

Now subustiute the values of  in the above equation.

Therefore has real zeros at and .

Create a sign chart using the values and .

Note : The solid circle denote that the value are included in the solution set.           

Observe the sign chart :

The set of value of denoted in pink color represents the solution set.

Determine whether is positive or negative on the test intervals.

Test intervals are and .

If then .

If then .

If then .

The solutions of  are values for which is negitive or equal to .

The solution set is .

The domain of the equation is restricted to .

Create a  sign chart that includes this restriction.

When solving inequalities that involve raising each side to a power to eliminate a radical, it is important to test every interval using the original inequality.

Substitute a value in each test interval into the original inequality to determine if is a solution.

The original inequality equation is .

If then .

If then . 

If then .

If then .

Therefore the solution set is .

The Solution set of is .