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Alfonso finds four factors that multiply to -120. Two of the first three are negative. What is the sign of the fourth factor?

Would the fourth factor be a negative?

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If the 3rd factor is negative, then the 4th is positive.
Ex: (-1)(-1)(-1)(120) = -120
If the 3rd factor is positive, then the 4th is negative.
Ex: (-1)(-1)(1)(-120) = -120
(please comment if I can help more)

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