What two numbers multiply to -813 and add up to 812?

Here we answer the question: "What two numbers multiply to -813 and add up to 812?"

The answer to your question is:

-1 and 813

Below we illustrate and prove that -1 and 813 multiply to -813 and add up to 812:

-1 × 813 = -813
-1 + 813 = 812

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

x² + 812x - 813 = 0

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

(x - 1 ) (x + 813)

To summarize, since -1 and 813 multiply to -813 and add up 812, you know that the following is true:

x² + 812x - 813 = (x - 1 ) (x + 813)

Multiply To One Number and Add Up To Another
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