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-41

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Ephraim Armstrong

Lvl 10
3y ago
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11y ago

The factor pairs of -40 are (-40,1)(-20,2)(-10,4)(-8,5)(40,-1)(20,-2)(10,-4)(8,-5)

None of them add up to -1.

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Q: What times what equals -40 but also adds up to -1?
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