What two numbers multiply to 840 and add up to -82?

Here we answer the question: "What two numbers multiply to 840 and add up to -82?"

The answer to your question is:

-70 and -12

Below we illustrate and prove that -70 and -12 multiply to 840 and add up to -82:

-70 × -12 = 840
-70 + -12 = -82

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

x² - 82x + 840 = 0

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

(x - 70 ) (x - 12)

To summarize, since -70 and -12 multiply to 840 and add up -82, you know that the following is true:

x² - 82x + 840 = (x - 70 ) (x - 12)

Multiply To One Number and Add Up To Another
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