What two numbers multiply to -198 and add up to -13?

Here we answer the question: "What two numbers multiply to -198 and add up to -13?"

The answer to your question is:

-22 and 9

Below we illustrate and prove that -22 and 9 multiply to -198 and add up to -13:

-22 × 9 = -198
-22 + 9 = -13

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

x² - 13x - 198 = 0

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

(x - 22 ) (x + 9)

To summarize, since -22 and 9 multiply to -198 and add up -13, you know that the following is true:

x² - 13x - 198 = (x - 22 ) (x + 9)

Multiply To One Number and Add Up To Another
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