What two numbers multiply to -518 and add up to 257?




Here we answer the question: "What two numbers multiply to -518 and add up to 257?"

The answer to your question is:

-2 and 259


Below we illustrate and prove that -2 and 259 multiply to -518 and add up to 257:

-2 × 259 = -518
-2 + 259 = 257

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

x2 + 257x - 518 = 0

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

(x - 2 ) (x + 259)

To summarize, since -2 and 259 multiply to -518 and add up 257, you know that the following is true:

x2 + 257x - 518 = (x - 2 ) (x + 259)


Multiply To One Number and Add Up To Another
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