What two numbers multiply to -858 and add up to -857?

Here we answer the question: "What two numbers multiply to -858 and add up to -857?"

The answer to your question is:

-858 and 1

Below we illustrate and prove that -858 and 1 multiply to -858 and add up to -857:

-858 × 1 = -858
-858 + 1 = -857

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

x² - 857x - 858 = 0

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

(x - 858 ) (x + 1)

To summarize, since -858 and 1 multiply to -858 and add up -857, you know that the following is true:

x² - 857x - 858 = (x - 858 ) (x + 1)

Multiply To One Number and Add Up To Another
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