The qudractic expression is .

                     (Add 1 to each side)

                 (Add to each side)

                       (Add: )

The perfect square of the given trinomial .

Apply square roots property: If , then .

Apply subtraction property of equality: If a = b then .

            (Subtract from each side)

                             (Apply additive inverse property: )

Using the calculator and evaluate square roots.

Separate the solutions .

The solution set is .