$\"\"$

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Simplify the equation is $\"\"$ .

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

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

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$\"\"$ (Add equal powers)

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

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Therefore, the simplified equation is $\"\"$ .

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$\"\"$

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The simplified equation is $\"\"$ .