What two numbers multiply to -520 and add up to 258?

Here we answer the question: "What two numbers multiply to -520 and add up to 258?"

The answer to your question is:

-2 and 260

Below we illustrate and prove that -2 and 260 multiply to -520 and add up to 258:

-2 × 260 = -520
-2 + 260 = 258

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

x² + 258x - 520 = 0

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

(x - 2 ) (x + 260)

To summarize, since -2 and 260 multiply to -520 and add up 258, you know that the following is true:

x² + 258x - 520 = (x - 2 ) (x + 260)

Multiply To One Number and Add Up To Another
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