\"\"

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The expression is \"\".

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

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\"\"

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Simplify the expression uisng order of operations (PEDMAS).

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Since there are no parentheses first operation is evaluating powers.

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Next operation is evaluating power.

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

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First operation is addition.

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

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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 \"\"