$\"\"$

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The expression is $\"\"$ .

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Find the product.

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$\"\"$ (Original expression)

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$\"\"$ (Distributive property: $\"\"$ )

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$\"\"$ (Distributive property: $\"\"$ )

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$\"\"$ (Multiply the monomials)

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$\"\"$ (Combine like terms)

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

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The simplified expression is $\"\"$ .