$\"\"$

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The equation is $\"\"$ .

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$\"\"$ (Substitute y = 0)

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$\"\"$

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$\"\"$ (Isolate radical)

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$\"\"$ (Square each side) $\"\"$

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$\"\"$ (Write in general form)

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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

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The solutions are $\"\"$ .