$\"\"$

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The equation is $\"\"$ .

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Re write the equation as complete square.

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$\"\"$

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Take out common factors.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Take square root each side.

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$\"\"$

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$\"\"$ Subtract 7 from each side.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ $\"\"$

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The solution set is $\"\"$ .