What two numbers multiply to -979 and add up to -78?

Here we answer the question: "What two numbers multiply to -979 and add up to -78?"

The answer to your question is:

-89 and 11

Below we illustrate and prove that -89 and 11 multiply to -979 and add up to -78:

-89 × 11 = -979
-89 + 11 = -78

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

x² - 78x - 979 = 0

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

(x - 89 ) (x + 11)

To summarize, since -89 and 11 multiply to -979 and add up -78, you know that the following is true:

x² - 78x - 979 = (x - 89 ) (x + 11)

Multiply To One Number and Add Up To Another
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