$\"\"$

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The quadratic equation is $\"\"$ .

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$\"\"$

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Extract square roots.

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$\"\"$

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First solution : \ \

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$\"\"$

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Subtract 3 from each side.

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$\"\"$

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Second solution :

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$\"\"$

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Subtract 3 from each side.

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$\"\"$

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$\"\"$

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The values of $\"\"$ .