What two numbers multiply to 780 and add up to -781?

Here we answer the question: "What two numbers multiply to 780 and add up to -781?"

The answer to your question is:

-780 and -1

Below we illustrate and prove that -780 and -1 multiply to 780 and add up to -781:

-780 × -1 = 780
-780 + -1 = -781

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

x² - 781x + 780 = 0

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

(x - 780 ) (x - 1)

To summarize, since -780 and -1 multiply to 780 and add up -781, you know that the following is true:

x² - 781x + 780 = (x - 780 ) (x - 1)

Multiply To One Number and Add Up To Another
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