What two numbers multiply to 980 and add up to -981?

Here we answer the question: "What two numbers multiply to 980 and add up to -981?"

The answer to your question is:

-980 and -1

Below we illustrate and prove that -980 and -1 multiply to 980 and add up to -981:

-980 × -1 = 980
-980 + -1 = -981

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

x² - 981x + 980 = 0

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

(x - 980 ) (x - 1)

To summarize, since -980 and -1 multiply to 980 and add up -981, you know that the following is true:

x² - 981x + 980 = (x - 980 ) (x - 1)

Multiply To One Number and Add Up To Another
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