What two numbers multiply to -660 and add up to -659?

Here we answer the question: "What two numbers multiply to -660 and add up to -659?"

The answer to your question is:

-660 and 1

Below we illustrate and prove that -660 and 1 multiply to -660 and add up to -659:

-660 × 1 = -660
-660 + 1 = -659

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

x² - 659x - 660 = 0

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

(x - 660 ) (x + 1)

To summarize, since -660 and 1 multiply to -660 and add up -659, you know that the following is true:

x² - 659x - 660 = (x - 660 ) (x + 1)

Multiply To One Number and Add Up To Another
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