What two numbers multiply to 637 and add up to -638?

Here we answer the question: "What two numbers multiply to 637 and add up to -638?"

The answer to your question is:

-637 and -1

Below we illustrate and prove that -637 and -1 multiply to 637 and add up to -638:

-637 × -1 = 637
-637 + -1 = -638

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

x² - 638x + 637 = 0

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

(x - 637 ) (x - 1)

To summarize, since -637 and -1 multiply to 637 and add up -638, you know that the following is true:

x² - 638x + 637 = (x - 637 ) (x - 1)

Multiply To One Number and Add Up To Another
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