\"\"

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

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Find \"\".

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\"\"          (Composition of functions formula)

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\"\"            (Substitute \"\")

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\"\"                  (Substitute again)

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

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\"\"                            (Simplify)

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\"\".

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\"\"

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Find \"\".

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\"\"              (Composition of functions formula)

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\"\"        (Substitute \"\")

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\"\"                  (Substitute again)

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\"\"                (Differences of square: \"\")

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\"\"                      (Simplify)

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\"\".

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\"\"

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\"\" and  \"\".