What two numbers multiply to -629 and add up to 628?

Here we answer the question: "What two numbers multiply to -629 and add up to 628?"

The answer to your question is:

-1 and 629

Below we illustrate and prove that -1 and 629 multiply to -629 and add up to 628:

-1 × 629 = -629
-1 + 629 = 628

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

x² + 628x - 629 = 0

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

(x - 1 ) (x + 629)

To summarize, since -1 and 629 multiply to -629 and add up 628, you know that the following is true:

x² + 628x - 629 = (x - 1 ) (x + 629)

Multiply To One Number and Add Up To Another
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