What two numbers multiply to -891 and add up to 890?

Here we answer the question: "What two numbers multiply to -891 and add up to 890?"

The answer to your question is:

-1 and 891

Below we illustrate and prove that -1 and 891 multiply to -891 and add up to 890:

-1 × 891 = -891
-1 + 891 = 890

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

x² + 890x - 891 = 0

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

(x - 1 ) (x + 891)

To summarize, since -1 and 891 multiply to -891 and add up 890, you know that the following is true:

x² + 890x - 891 = (x - 1 ) (x + 891)

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.