What two numbers multiply to -425 and add up to 424?

Here we answer the question: "What two numbers multiply to -425 and add up to 424?"

The answer to your question is:

-1 and 425

Below we illustrate and prove that -1 and 425 multiply to -425 and add up to 424:

-1 × 425 = -425
-1 + 425 = 424

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

x² + 424x - 425 = 0

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

(x - 1 ) (x + 425)

To summarize, since -1 and 425 multiply to -425 and add up 424, you know that the following is true:

x² + 424x - 425 = (x - 1 ) (x + 425)

Multiply To One Number and Add Up To Another
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