$\"\"$

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

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Find $\"\"$ .

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$\"\"$ (Addition of functions formula)

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$\"\"$ (Substitute $\"\"$ and $\"\"$ )

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$\"\"$ (Combine like tems)

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Find $\"\"$ .

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$\"\"$ (Subtraction of functions formula)

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$\"\"$ (Substitute $\"\"$ and $\"\"$ )

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$\"\"$ (Distributive property: $\"\"$ )

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$\"\"$ (Combine like tems)

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Find $\"\"$ .

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$\"\"$ (Multiplication of functions formula)

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$\"\"$ (Substitute $\"\"$ and $\"\"$ )

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$\"\"$ (Difference of squares: $\"\"$ )

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$\"\"$ (Evaluate powers)

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Find $\"\"$ .

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$\"\"$ (Division of functions formula)

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$\"\"$ (Substitute $\"\"$ and $\"\"$ )

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$\"\"$ .

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Since $\"\"$ makes the denominator $\"\"$ , $\"\"$ is excluded from the domain of $\"\"$ .

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$\"\"$

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$\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ .