Multiple Choice

A resource manager is simplifying the expression 12−3(9−12)12 - 3(9 - 12) to calculate an equipment allocation. After resolving the parentheses, the expression becomes 12−3(−3)12 - 3(-3). Which mathematical rule is used to determine that the product of 33 and −3-3 is negative?

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Updated 2026-09-17

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