What two numbers multiply to -398 and add up to -197?

Here we answer the question: "What two numbers multiply to -398 and add up to -197?"

The answer to your question is:

-199 and 2

Below we illustrate and prove that -199 and 2 multiply to -398 and add up to -197:

-199 × 2 = -398
-199 + 2 = -197

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

x² - 197x - 398 = 0

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

(x - 199 ) (x + 2)

To summarize, since -199 and 2 multiply to -398 and add up -197, you know that the following is true:

x² - 197x - 398 = (x - 199 ) (x + 2)

Multiply To One Number and Add Up To Another
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