$\"\"$

The equation is $\"\"$ .

Subtract $\"\"$ from each side.

$\"\"$

Squaring on each side.

$\"\"$

Subtract 16 from each side.

$\"\"$

Divide each side by 8.

$\"\"$

The value of $\"\"$ .

$\"\"$

Since the given equation $\"\"$ is a radical equation, once recheck the solution by back substitution.

Check : \ \

Substitute $\"\"$ in $\"\"$ .

$\"\"$

Since the above statement is true, $\"\"$ is a solution of $\"\"$ .

$\"\"$

The solution is $\"\"$ .