What two numbers multiply to -681 and add up to -680?

Here we answer the question: "What two numbers multiply to -681 and add up to -680?"

The answer to your question is:

-681 and 1

Below we illustrate and prove that -681 and 1 multiply to -681 and add up to -680:

-681 × 1 = -681
-681 + 1 = -680

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

x² - 680x - 681 = 0

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

(x - 681 ) (x + 1)

To summarize, since -681 and 1 multiply to -681 and add up -680, you know that the following is true:

x² - 680x - 681 = (x - 681 ) (x + 1)

Multiply To One Number and Add Up To Another
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