What two numbers multiply to -856 and add up to 426?

Here we answer the question: "What two numbers multiply to -856 and add up to 426?"

The answer to your question is:

-2 and 428

Below we illustrate and prove that -2 and 428 multiply to -856 and add up to 426:

-2 × 428 = -856
-2 + 428 = 426

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

x² + 426x - 856 = 0

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

(x - 2 ) (x + 428)

To summarize, since -2 and 428 multiply to -856 and add up 426, you know that the following is true:

x² + 426x - 856 = (x - 2 ) (x + 428)

Multiply To One Number and Add Up To Another
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