What two numbers multiply to -624 and add up to 623?

Here we answer the question: "What two numbers multiply to -624 and add up to 623?"

The answer to your question is:

-1 and 624

Below we illustrate and prove that -1 and 624 multiply to -624 and add up to 623:

-1 × 624 = -624
-1 + 624 = 623

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

x² + 623x - 624 = 0

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

(x - 1 ) (x + 624)

To summarize, since -1 and 624 multiply to -624 and add up 623, you know that the following is true:

x² + 623x - 624 = (x - 1 ) (x + 624)

Multiply To One Number and Add Up To Another
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