$\"\"$ $\"\"$ $\"\"$

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The expression is $\"\"$

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

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

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

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$\"\"$ (Product of two same signs is positive)

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

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$\"\"$ (Subtract: $\"\"$ )

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$\"\"$ (Add: $\"\"$ ) $\"\"$

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The simplified expression $\"\"$ .

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