What two numbers multiply to -820 and add up to -819?

Here we answer the question: "What two numbers multiply to -820 and add up to -819?"

The answer to your question is:

-820 and 1

Below we illustrate and prove that -820 and 1 multiply to -820 and add up to -819:

-820 × 1 = -820
-820 + 1 = -819

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

x² - 819x - 820 = 0

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

(x - 820 ) (x + 1)

To summarize, since -820 and 1 multiply to -820 and add up -819, you know that the following is true:

x² - 819x - 820 = (x - 820 ) (x + 1)

Multiply To One Number and Add Up To Another
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