$\"\"$

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The system of equations are $\"\"$ and $\"\"$ .

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Consider $\"\"$ .

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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Use quadratic formula to find the roots of the related quadratic equation.

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$\"\"$

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$\"\"$

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$\"\"$

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If $\"\"$ , $\"\"$ .

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$\"\"$

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$\"\"$

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If $\"\"$ , $\"\"$ .

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$\"\"$

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$\"\"$

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The values of $\"\"$ , $\"\"$ and $\"\"$ , $\"\"$ .