What two numbers multiply to -810 and add up to -403?

Here we answer the question: "What two numbers multiply to -810 and add up to -403?"

The answer to your question is:

-405 and 2

Below we illustrate and prove that -405 and 2 multiply to -810 and add up to -403:

-405 × 2 = -810
-405 + 2 = -403

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

x² - 403x - 810 = 0

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

(x - 405 ) (x + 2)

To summarize, since -405 and 2 multiply to -810 and add up -403, you know that the following is true:

x² - 403x - 810 = (x - 405 ) (x + 2)

Multiply To One Number and Add Up To Another
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