SOLUTION: if the product of two numbers is positive, then the two numbes must be positive. is that true? if so, what is a counterexample for it?

Question 334630: if the product of two numbers is positive, then the two numbes must be positive. is that true? if so, what is a counterexample for it?
Found 2 solutions by solver91311, Alan3354:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Your question is improperly stated. What you should have written:

If the product of two numbers is positive, then the two numbes must be positive. Is that true? If it is not true, what is a counterexample for it?

If something is true, then by definition of "true" there is no counterexample.

John

My calculator said it, I believe it, that settles it

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
-1 * -1 = +1

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