What two numbers multiply to -722 and add up to 721?

Here we answer the question: "What two numbers multiply to -722 and add up to 721?"

The answer to your question is:

-1 and 722

Below we illustrate and prove that -1 and 722 multiply to -722 and add up to 721:

-1 × 722 = -722
-1 + 722 = 721

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

x² + 721x - 722 = 0

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

(x - 1 ) (x + 722)

To summarize, since -1 and 722 multiply to -722 and add up 721, you know that the following is true:

x² + 721x - 722 = (x - 1 ) (x + 722)

Multiply To One Number and Add Up To Another
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