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

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

The answer to your question is:

-686 and 1

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

-686 × 1 = -686
-686 + 1 = -685

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

x² - 685x - 686 = 0

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

(x - 686 ) (x + 1)

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

x² - 685x - 686 = (x - 686 ) (x + 1)

Multiply To One Number and Add Up To Another
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