What two numbers multiply to 684 and add up to -85?

Here we answer the question: "What two numbers multiply to 684 and add up to -85?"

The answer to your question is:

-76 and -9

Below we illustrate and prove that -76 and -9 multiply to 684 and add up to -85:

-76 × -9 = 684
-76 + -9 = -85

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

x² - 85x + 684 = 0

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

(x - 76 ) (x - 9)

To summarize, since -76 and -9 multiply to 684 and add up -85, you know that the following is true:

x² - 85x + 684 = (x - 76 ) (x - 9)

Multiply To One Number and Add Up To Another
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