What two numbers multiply to 656 and add up to -657?

Here we answer the question: "What two numbers multiply to 656 and add up to -657?"

The answer to your question is:

-656 and -1

Below we illustrate and prove that -656 and -1 multiply to 656 and add up to -657:

-656 × -1 = 656
-656 + -1 = -657

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

x² - 657x + 656 = 0

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

(x - 656 ) (x - 1)

To summarize, since -656 and -1 multiply to 656 and add up -657, you know that the following is true:

x² - 657x + 656 = (x - 656 ) (x - 1)

Multiply To One Number and Add Up To Another
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