What two numbers multiply to -815 and add up to 814?

Here we answer the question: "What two numbers multiply to -815 and add up to 814?"

The answer to your question is:

-1 and 815

Below we illustrate and prove that -1 and 815 multiply to -815 and add up to 814:

-1 × 815 = -815
-1 + 815 = 814

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

x² + 814x - 815 = 0

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

(x - 1 ) (x + 815)

To summarize, since -1 and 815 multiply to -815 and add up 814, you know that the following is true:

x² + 814x - 815 = (x - 1 ) (x + 815)

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.