What two numbers multiply to -255 and add up to -2?

Here we answer the question: "What two numbers multiply to -255 and add up to -2?"

The answer to your question is:

-17 and 15

Below we illustrate and prove that -17 and 15 multiply to -255 and add up to -2:

-17 × 15 = -255
-17 + 15 = -2

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

x² - 2x - 255 = 0

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

(x - 17 ) (x + 15)

To summarize, since -17 and 15 multiply to -255 and add up -2, you know that the following is true:

x² - 2x - 255 = (x - 17 ) (x + 15)

Multiply To One Number and Add Up To Another
Did you find the information on this page useful? Here you can solve a similar problem.