What two numbers multiply to 81 and add up to -82?

Here we answer the question: "What two numbers multiply to 81 and add up to -82?"

The answer to your question is:

-81 and -1

Below we illustrate and prove that -81 and -1 multiply to 81 and add up to -82:

-81 × -1 = 81
-81 + -1 = -82

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

x² - 82x + 81 = 0

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

(x - 81 ) (x - 1)

To summarize, since -81 and -1 multiply to 81 and add up -82, you know that the following is true:

x² - 82x + 81 = (x - 81 ) (x - 1)

Multiply To One Number and Add Up To Another
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