What two numbers multiply to -240 and add up to 239?

Here we answer the question: "What two numbers multiply to -240 and add up to 239?"

The answer to your question is:

-1 and 240

Below we illustrate and prove that -1 and 240 multiply to -240 and add up to 239:

-1 × 240 = -240
-1 + 240 = 239

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

x² + 239x - 240 = 0

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

(x - 1 ) (x + 240)

To summarize, since -1 and 240 multiply to -240 and add up 239, you know that the following is true:

x² + 239x - 240 = (x - 1 ) (x + 240)

Multiply To One Number and Add Up To Another
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