What two numbers multiply to 397 and add up to -398?

Here we answer the question: "What two numbers multiply to 397 and add up to -398?"

The answer to your question is:

-397 and -1

Below we illustrate and prove that -397 and -1 multiply to 397 and add up to -398:

-397 × -1 = 397
-397 + -1 = -398

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

x² - 398x + 397 = 0

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

(x - 397 ) (x - 1)

To summarize, since -397 and -1 multiply to 397 and add up -398, you know that the following is true:

x² - 398x + 397 = (x - 397 ) (x - 1)

Multiply To One Number and Add Up To Another
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