What two numbers multiply to -839 and add up to 838?

Here we answer the question: "What two numbers multiply to -839 and add up to 838?"

The answer to your question is:

-1 and 839

Below we illustrate and prove that -1 and 839 multiply to -839 and add up to 838:

-1 × 839 = -839
-1 + 839 = 838

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

x² + 838x - 839 = 0

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

(x - 1 ) (x + 839)

To summarize, since -1 and 839 multiply to -839 and add up 838, you know that the following is true:

x² + 838x - 839 = (x - 1 ) (x + 839)

Multiply To One Number and Add Up To Another
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