What two numbers multiply to -778 and add up to -387?

Here we answer the question: "What two numbers multiply to -778 and add up to -387?"

The answer to your question is:

-389 and 2

Below we illustrate and prove that -389 and 2 multiply to -778 and add up to -387:

-389 × 2 = -778
-389 + 2 = -387

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

x² - 387x - 778 = 0

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

(x - 389 ) (x + 2)

To summarize, since -389 and 2 multiply to -778 and add up -387, you know that the following is true:

x² - 387x - 778 = (x - 389 ) (x + 2)

Multiply To One Number and Add Up To Another
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