$\"\"$

The equation is $\"\"$ . \ \ $\"\"$ (Square each side and eliminate the square roots)

$\"\"$ (Evaluate powers: $\"\"$ )

$\"\"$ (Add 4 to each side)

$\"\"$

$\"\"$ (Divide each side by 2) \ \

$\"\"$

Check:

To check the solution substitute $\"\"$ in $\"\"$ .

$\"\"$

$\"\"$ (Evaluate square roots: $\"\"$ )

The solution is "True". $\"\"$

The solution is "True".