What two numbers multiply to -520 and add up to -519?

Here we answer the question: "What two numbers multiply to -520 and add up to -519?"

The answer to your question is:

-520 and 1

Below we illustrate and prove that -520 and 1 multiply to -520 and add up to -519:

-520 × 1 = -520
-520 + 1 = -519

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

x² - 519x - 520 = 0

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

(x - 520 ) (x + 1)

To summarize, since -520 and 1 multiply to -520 and add up -519, you know that the following is true:

x² - 519x - 520 = (x - 520 ) (x + 1)

Multiply To One Number and Add Up To Another
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