\"\"

\

Original function is \"\".

\

Replace x = 3 in original function.

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\"\"

\

\"\"        (Evaluate power: \"\")

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\"\"          (Evaluate power: \"\")  

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\"\"                   (Multiply: \"\")

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\"\"                           (Add: \"\")

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\"\"                                 (Subtract: \"\")

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\"\"                                       (Add: \"\") \"\"

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Replace x = – 4 in original function.

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\"\"

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Evaluate powers: \"\" and \"\".

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\"\"

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\"\"      (Multiply: \"\")

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\"\"                    (Add: \"\")

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\"\"                            (Add: \"\")\"\"

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\"\" and \"\".