What two numbers multiply to -871 and add up to -870?

Here we answer the question: "What two numbers multiply to -871 and add up to -870?"

The answer to your question is:

-871 and 1

Below we illustrate and prove that -871 and 1 multiply to -871 and add up to -870:

-871 × 1 = -871
-871 + 1 = -870

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

x² - 870x - 871 = 0

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

(x - 871 ) (x + 1)

To summarize, since -871 and 1 multiply to -871 and add up -870, you know that the following is true:

x² - 870x - 871 = (x - 871 ) (x + 1)

Multiply To One Number and Add Up To Another
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