What two numbers multiply to -786 and add up to 391?

Here we answer the question: "What two numbers multiply to -786 and add up to 391?"

The answer to your question is:

-2 and 393

Below we illustrate and prove that -2 and 393 multiply to -786 and add up to 391:

-2 × 393 = -786
-2 + 393 = 391

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

x² + 391x - 786 = 0

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

(x - 2 ) (x + 393)

To summarize, since -2 and 393 multiply to -786 and add up 391, you know that the following is true:

x² + 391x - 786 = (x - 2 ) (x + 393)

Multiply To One Number and Add Up To Another
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