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:

-1 and 871

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

-1 × 871 = -871
-1 + 871 = 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 - 1 ) (x + 871)

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

x² + 870x - 871 = (x - 1 ) (x + 871)

Multiply To One Number and Add Up To Another
Did you find the information on this page useful? Here you can solve a similar problem.