What two numbers multiply to -84 and add up to -8?

Here we answer the question: "What two numbers multiply to -84 and add up to -8?"

The answer to your question is:

-14 and 6

Below we illustrate and prove that -14 and 6 multiply to -84 and add up to -8:

-14 × 6 = -84
-14 + 6 = -8

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

x² - 8x - 84 = 0

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

(x - 14 ) (x + 6)

To summarize, since -14 and 6 multiply to -84 and add up -8, you know that the following is true:

x² - 8x - 84 = (x - 14 ) (x + 6)

Multiply To One Number and Add Up To Another
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