$\"\"$

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The equation is $\"\"$ .

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Solve the equation.

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$\"\"$ (Original equation)

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$\"\"$ (Factor the perfect square trinomial)

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$\"\"$ (Square root property)

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$\"\"$ (Substitute: $\"\"$ )

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

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$\"\"$ (Apply additive inverse property: $\"\"$ )

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$\"\"$ and $\"\"$ (Write as two equations)

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$\"\"$ and $\"\"$ (Simplify)

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The solution set is $\"\"$ .

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$\"\"$

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Check the solution for $\"\"$ -values.

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Case (i):

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$\"\"$ (Original equation)

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$\"\"$ (Substitute $\"\"$ )

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

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$\"\"$ (Multiply)

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$\"\"$ (Substitute: $\"\"$ )

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Case (ii):

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$\"\"$ (Original equation)

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$\"\"$ (Substitute $\"\"$ )

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

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$\"\"$ (Multiply)

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$\"\"$ (Substitute: $\"\"$ )

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$\"\"$

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The solution set is $\"\"$ .