What two numbers multiply to -280 and add up to -279?

Here we answer the question: "What two numbers multiply to -280 and add up to -279?"

The answer to your question is:

-280 and 1

Below we illustrate and prove that -280 and 1 multiply to -280 and add up to -279:

-280 × 1 = -280
-280 + 1 = -279

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

x² - 279x - 280 = 0

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

(x - 280 ) (x + 1)

To summarize, since -280 and 1 multiply to -280 and add up -279, you know that the following is true:

x² - 279x - 280 = (x - 280 ) (x + 1)

Multiply To One Number and Add Up To Another
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