$\"\"$

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The given functions are $\"\"$ .

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$\"\"$ ( $\"\"$ equal to $\"\"$ )

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$\"\"$ (Subtratct $\"\"$ from each side)

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$\"\"$ (Apply distributive property)

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$\"\"$ (Set 1st factor on equal to zero) $\"\"$ $\"\"$

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$\"\"$ (Set second factor on equal to zero)

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

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

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$\"\"$

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The two graphs intersect when 0,0, $\"\"$ . $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ (Integrating)

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$\"\"$

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$\"\"$ (Simplify)

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$\"\"$

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$\"\"$ (Subtract)

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$\"\"$ (Subtract) $\"\"$

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The area of region is $\"\"$ .