What two numbers multiply to -621 and add up to -620?

Here we answer the question: "What two numbers multiply to -621 and add up to -620?"

The answer to your question is:

-621 and 1

Below we illustrate and prove that -621 and 1 multiply to -621 and add up to -620:

-621 × 1 = -621
-621 + 1 = -620

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

x² - 620x - 621 = 0

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

(x - 621 ) (x + 1)

To summarize, since -621 and 1 multiply to -621 and add up -620, you know that the following is true:

x² - 620x - 621 = (x - 621 ) (x + 1)

Multiply To One Number and Add Up To Another
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