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$\"\"$ .

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The function is $\"\"$ .

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Let $\"\"$ represented the more complicated part of the function, $\"\"$ .

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Therefore, we have $\"\"$ , where $\"\"$ is some expression that will convert $\"\"$ to $\"\"$ .

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Focusing strictly on the $\"\"$ , simplify $\"\"$ to $\"\"$ .

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Convert $\"\"$ to $\"\"$ .

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To do this, solve for $\"\"$ .

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$\"\"$

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Square on both sides.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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Finally, replace $\"\"$ with $\"\"$ .

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$\"\"$

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$\"\"$ .

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The two functions are $\"\"$ and $\"\"$ .

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Find $\"\"$ .

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$\"\"$

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Replace $\"\"$ with $\"\"$ .

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$\"\"$

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

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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The two functions are $\"\"$ and $\"\"$ .