What two numbers multiply to -780 and add up to -68?

Here we answer the question: "What two numbers multiply to -780 and add up to -68?"

The answer to your question is:

-78 and 10

Below we illustrate and prove that -78 and 10 multiply to -780 and add up to -68:

-78 × 10 = -780
-78 + 10 = -68

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

x² - 68x - 780 = 0

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

(x - 78 ) (x + 10)

To summarize, since -78 and 10 multiply to -780 and add up -68, you know that the following is true:

x² - 68x - 780 = (x - 78 ) (x + 10)

Multiply To One Number and Add Up To Another
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