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\"\"

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The expression is \"\".

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\"\"                  (Substitute a = 3, d =\"\")

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\"\"

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First operation is addition.

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

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Next operation is evaluating power.

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

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Next operation is addition.

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\"\"                          (Add: 9 + 3 = 12)

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Next operation is division.

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\"\"                            (Divide: \"\")

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\"\"

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The value of the expression is \"\"

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