What two numbers multiply to -872 and add up to 871?

Here we answer the question: "What two numbers multiply to -872 and add up to 871?"

The answer to your question is:

-1 and 872

Below we illustrate and prove that -1 and 872 multiply to -872 and add up to 871:

-1 × 872 = -872
-1 + 872 = 871

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

x² + 871x - 872 = 0

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

(x - 1 ) (x + 872)

To summarize, since -1 and 872 multiply to -872 and add up 871, you know that the following is true:

x² + 871x - 872 = (x - 1 ) (x + 872)

Multiply To One Number and Add Up To Another
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