What two numbers multiply to -798 and add up to 397?

Here we answer the question: "What two numbers multiply to -798 and add up to 397?"

The answer to your question is:

-2 and 399

Below we illustrate and prove that -2 and 399 multiply to -798 and add up to 397:

-2 × 399 = -798
-2 + 399 = 397

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

x² + 397x - 798 = 0

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

(x - 2 ) (x + 399)

To summarize, since -2 and 399 multiply to -798 and add up 397, you know that the following is true:

x² + 397x - 798 = (x - 2 ) (x + 399)

Multiply To One Number and Add Up To Another
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