What two numbers multiply to -623 and add up to 622?

Here we answer the question: "What two numbers multiply to -623 and add up to 622?"

The answer to your question is:

-1 and 623

Below we illustrate and prove that -1 and 623 multiply to -623 and add up to 622:

-1 × 623 = -623
-1 + 623 = 622

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

x² + 622x - 623 = 0

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

(x - 1 ) (x + 623)

To summarize, since -1 and 623 multiply to -623 and add up 622, you know that the following is true:

x² + 622x - 623 = (x - 1 ) (x + 623)

Multiply To One Number and Add Up To Another
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