What two numbers multiply to -338 and add up to 13?

Here we answer the question: "What two numbers multiply to -338 and add up to 13?"

The answer to your question is:

-13 and 26

Below we illustrate and prove that -13 and 26 multiply to -338 and add up to 13:

-13 × 26 = -338
-13 + 26 = 13

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

x² + 13x - 338 = 0

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

(x - 13 ) (x + 26)

To summarize, since -13 and 26 multiply to -338 and add up 13, you know that the following is true:

x² + 13x - 338 = (x - 13 ) (x + 26)

Multiply To One Number and Add Up To Another
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