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

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The expression is $\"\"$ .

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12 can be written as (10 + 2)

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$\"\"$

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$\"\"$ (Distribute 9)

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$\"\"$ (Multiply: $\"\"$ ) $\"\"$ $\"\"$ (Distribute 4)

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

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

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The product is 432.