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Self Check: Different Signs
publish date: 2026/04/29 20:38:32.266816 UTC
Multiply: \( 5(-9) \)
Answer = (1)
Correct Answer
(1) -45
Explanation
To multiply integers with different signs, multiply their absolute values (5 and 9) to get 45, and then make the product negative: -45.
Reference
Mathematics for college students