What two numbers multiply to -440 and add up to -439?

Here we answer the question: "What two numbers multiply to -440 and add up to -439?"

The answer to your question is:

-440 and 1

Below we illustrate and prove that -440 and 1 multiply to -440 and add up to -439:

-440 × 1 = -440
-440 + 1 = -439

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

x² - 439x - 440 = 0

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

(x - 440 ) (x + 1)

To summarize, since -440 and 1 multiply to -440 and add up -439, you know that the following is true:

x² - 439x - 440 = (x - 440 ) (x + 1)

Multiply To One Number and Add Up To Another
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