$\"\"$

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The equation is $\"\"$ .

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$\"\"$ (Subtract 7 from each side)

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$\"\"$

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$\"\"$ (Add 16 to each side)

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$\"\"$

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

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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 a $\"\"$ c = b $\"\"$ c.

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

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

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$\"\"$

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

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The solution set is $\"\"$ .