What two numbers multiply to -638 and add up to -317?

Here we answer the question: "What two numbers multiply to -638 and add up to -317?"

The answer to your question is:

-319 and 2

Below we illustrate and prove that -319 and 2 multiply to -638 and add up to -317:

-319 × 2 = -638
-319 + 2 = -317

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

x² - 317x - 638 = 0

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

(x - 319 ) (x + 2)

To summarize, since -319 and 2 multiply to -638 and add up -317, you know that the following is true:

x² - 317x - 638 = (x - 319 ) (x + 2)

Multiply To One Number and Add Up To Another
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