Here we answer the question: "What two numbers multiply to -496 and add up to 15?"
The answer to your question is:
-16 and 31
Below we illustrate and prove that -16 and 31 multiply to -496 and add up to 15:
-16 × 31 = -496
-16 + 31 = 15
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 + 15x - 496 = 0
If so, the solution to factor the quadratic equation above is:
(x - 16 ) (x + 31)
To summarize, since -16 and 31 multiply to -496 and add up 15, you know that the following is true:
x2 + 15x - 496 = (x - 16 ) (x + 31)
Multiply To One Number and Add Up To Another
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