SOLUTION: How do I find out whether a number is the product of -1

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Question 398219: How do I find out whether a number is the product of -1
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Every number is a multiple of -1
just like every number is a multiple
of 1.
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Let "a" be any number.
Then a = (-1)(-a)
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Cheers,
Stan H.