$\"\"$

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The expression is $\"\"$ .

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$\"\"$ (Write the expression)

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$\"\"$ (Apply distributive property: $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Group like terms) \ \

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$\"\"$ (Combine like terms)

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

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The simplified expression is $\"\"$ .