What two numbers multiply to -637 and add up to -84?

Here we answer the question: "What two numbers multiply to -637 and add up to -84?"

The answer to your question is:

-91 and 7

Below we illustrate and prove that -91 and 7 multiply to -637 and add up to -84:

-91 × 7 = -637
-91 + 7 = -84

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

x² - 84x - 637 = 0

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

(x - 91 ) (x + 7)

To summarize, since -91 and 7 multiply to -637 and add up -84, you know that the following is true:

x² - 84x - 637 = (x - 91 ) (x + 7)

Multiply To One Number and Add Up To Another
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