\"\"

\

Original function is \"\".

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Replace x = 7 in original function.

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\"\"    (Evaluate power: \"\")

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

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\"\"          (Multiply: \"\")

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

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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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\"\" and \"\".