What two numbers multiply to -819 and add up to 818?

Here we answer the question: "What two numbers multiply to -819 and add up to 818?"

The answer to your question is:

-1 and 819

Below we illustrate and prove that -1 and 819 multiply to -819 and add up to 818:

-1 × 819 = -819
-1 + 819 = 818

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

x² + 818x - 819 = 0

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

(x - 1 ) (x + 819)

To summarize, since -1 and 819 multiply to -819 and add up 818, you know that the following is true:

x² + 818x - 819 = (x - 1 ) (x + 819)

Multiply To One Number and Add Up To Another
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