What two numbers multiply to -809 and add up to 808?

Here we answer the question: "What two numbers multiply to -809 and add up to 808?"

The answer to your question is:

-1 and 809

Below we illustrate and prove that -1 and 809 multiply to -809 and add up to 808:

-1 × 809 = -809
-1 + 809 = 808

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

x² + 808x - 809 = 0

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

(x - 1 ) (x + 809)

To summarize, since -1 and 809 multiply to -809 and add up 808, you know that the following is true:

x² + 808x - 809 = (x - 1 ) (x + 809)

Multiply To One Number and Add Up To Another
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