What two numbers multiply to -499 and add up to 498?

Here we answer the question: "What two numbers multiply to -499 and add up to 498?"

The answer to your question is:

-1 and 499

Below we illustrate and prove that -1 and 499 multiply to -499 and add up to 498:

-1 × 499 = -499
-1 + 499 = 498

Are you asking because you are trying to figure out how to factor the following quadratic equation?

x² + 498x - 499 = 0

If so, the solution to factor the quadratic equation above is:

(x - 1 ) (x + 499)

To summarize, since -1 and 499 multiply to -499 and add up 498, you know that the following is true:

x² + 498x - 499 = (x - 1 ) (x + 499)

Multiply To One Number and Add Up To Another
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