Question 1203982: what 2 numbers add to get -4 and multiply to get 3
Found 3 solutions by MathLover1, MathTherapy, josgarithmetic:
Answer by MathLover1(20849)   (Show Source):
Answer by MathTherapy(10551)  (Show Source):
You can put this solution on YOUR website!
what 2 numbers add to get -4 and multiply to get 3
Creating equations to answer this is TOTALLY, TOTALLY UNNECESSARY. That's because one just needs to determine
which 2 INTEGERS have a PRODUCT of 3 (+ 3), and sum to - 4. If equations are created, it's the same thing the
person has to do - if solving using the FACTORING method - unless of course, the person plans on using the
quadratic equation formula, which in this case, in my opinion, is TOTALLY, TOTALLY UNNECESSARY!!
So, going back to the problem, 3 is PRIME, and so, its ONLY factors are 3 and 1. But, since (+ 3)(+ 1) = + 3,
and also (- 3)(- 1) = + 3, it's clear that ONLY the factors, - 3 and - 1 SUM to - 4.
Therefore, the 2 integers being sought are - 3 and - 1.
Answer by josgarithmetic(39617)  (Show Source):
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