$\"\"$

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The equation is $\"\"$ .

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$\"\"$ (Subtract 4 from each side.)

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$\"\"$

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

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$\"\"$ (Add $\"\"$ )

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The perfect square of the given trinomial $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ (Take the square root of each side)

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Apply square roots property: If $\"\"$ then $\"\"$ .

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$\"\"$

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$\"\"$

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Apply addition property of equality: If a = b then $\"\"$ .

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

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

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Separate the solutions $\"\"$ .

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$\"\"$

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

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The solution set is $\"\"$ .