What two numbers multiply to -857 and add up to 856?

Here we answer the question: "What two numbers multiply to -857 and add up to 856?"

The answer to your question is:

-1 and 857

Below we illustrate and prove that -1 and 857 multiply to -857 and add up to 856:

-1 × 857 = -857
-1 + 857 = 856

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

x² + 856x - 857 = 0

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

(x - 1 ) (x + 857)

To summarize, since -1 and 857 multiply to -857 and add up 856, you know that the following is true:

x² + 856x - 857 = (x - 1 ) (x + 857)

Multiply To One Number and Add Up To Another
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