What two numbers multiply to -516 and add up to 256?

Here we answer the question: "What two numbers multiply to -516 and add up to 256?"

The answer to your question is:

-2 and 258

Below we illustrate and prove that -2 and 258 multiply to -516 and add up to 256:

-2 × 258 = -516
-2 + 258 = 256

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

x² + 256x - 516 = 0

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

(x - 2 ) (x + 258)

To summarize, since -2 and 258 multiply to -516 and add up 256, you know that the following is true:

x² + 256x - 516 = (x - 2 ) (x + 258)

Multiply To One Number and Add Up To Another
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