\"\"

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The expression is \"\"

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\"\"        (Substitute \"\")

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\"\"

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Apply the order of operations (PEMDAS)

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First operation is evaluating expression inside the parentheses.

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\"\"                (Subtract: \"\")

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

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Next operation is subtraction.

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

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\"\"

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The value of the expression is \"\".