What two numbers multiply to -660 and add up to -217?

Here we answer the question: "What two numbers multiply to -660 and add up to -217?"

The answer to your question is:

-220 and 3

Below we illustrate and prove that -220 and 3 multiply to -660 and add up to -217:

-220 × 3 = -660
-220 + 3 = -217

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

x² - 217x - 660 = 0

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

(x - 220 ) (x + 3)

To summarize, since -220 and 3 multiply to -660 and add up -217, you know that the following is true:

x² - 217x - 660 = (x - 220 ) (x + 3)

Multiply To One Number and Add Up To Another
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