What two numbers multiply to -172 and add up to -84?

Here we answer the question: "What two numbers multiply to -172 and add up to -84?"

The answer to your question is:

-86 and 2

Below we illustrate and prove that -86 and 2 multiply to -172 and add up to -84:

-86 × 2 = -172
-86 + 2 = -84

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

x² - 84x - 172 = 0

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

(x - 86 ) (x + 2)

To summarize, since -86 and 2 multiply to -172 and add up -84, you know that the following is true:

x² - 84x - 172 = (x - 86 ) (x + 2)

Multiply To One Number and Add Up To Another
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