$\"\"$

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The polynomial is $\"\"$ .

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Apply distributive property: $\"\"$ .

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$\"\"$

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

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

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

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The value of $\"\"$ $\"\"$ . $\"\"$

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The value of $\"\"$ $\"\"$ .