What two numbers multiply to -628 and add up to 627?

Here we answer the question: "What two numbers multiply to -628 and add up to 627?"

The answer to your question is:

-1 and 628

Below we illustrate and prove that -1 and 628 multiply to -628 and add up to 627:

-1 × 628 = -628
-1 + 628 = 627

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

x² + 627x - 628 = 0

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

(x - 1 ) (x + 628)

To summarize, since -1 and 628 multiply to -628 and add up 627, you know that the following is true:

x² + 627x - 628 = (x - 1 ) (x + 628)

Multiply To One Number and Add Up To Another
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