What two numbers multiply to 685 and add up to -686?

Here we answer the question: "What two numbers multiply to 685 and add up to -686?"

The answer to your question is:

-685 and -1

Below we illustrate and prove that -685 and -1 multiply to 685 and add up to -686:

-685 × -1 = 685
-685 + -1 = -686

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

x² - 686x + 685 = 0

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

(x - 685 ) (x - 1)

To summarize, since -685 and -1 multiply to 685 and add up -686, you know that the following is true:

x² - 686x + 685 = (x - 685 ) (x - 1)

Multiply To One Number and Add Up To Another
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