$\"\"$ \ \

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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 terms) \ \

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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 terms) \ \

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Find $\"\"$ . \ \

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

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

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

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$\"\"$ (Multiply) \ \

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

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$\"\"$ \ \

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