$\"\"$

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The expression is $\"\"$ .

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Simplify the expression.

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$\"\"$ (Original expression)

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$\"\"$ (Take out $\"\"$ as a common factor)

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$\"\"$ (Simplify)

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$\"\"$ (Rewrite the expression)

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$\"\"$ (Algebraic formula: $\"\"$ )

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$\"\"$ (Cancel the common terms)

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$\"\"$ (Multiply)

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$\"\"$ (Property of exponents: $\"\"$ )

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$\"\"$ (Simplify)

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$\"\"$ (Definition of $\"\"$ )

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$\"\"$ $\"\"$ .

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$\"\"$

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The simplified expression value is $\"\"$ .