What two numbers multiply to 810 and add up to -811?

Here we answer the question: "What two numbers multiply to 810 and add up to -811?"

The answer to your question is:

-810 and -1

Below we illustrate and prove that -810 and -1 multiply to 810 and add up to -811:

-810 × -1 = 810
-810 + -1 = -811

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

x² - 811x + 810 = 0

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

(x - 810 ) (x - 1)

To summarize, since -810 and -1 multiply to 810 and add up -811, you know that the following is true:

x² - 811x + 810 = (x - 810 ) (x - 1)

Multiply To One Number and Add Up To Another
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