What two numbers multiply to -260 and add up to -128?

Here we answer the question: "What two numbers multiply to -260 and add up to -128?"

The answer to your question is:

-130 and 2

Below we illustrate and prove that -130 and 2 multiply to -260 and add up to -128:

-130 × 2 = -260
-130 + 2 = -128

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

x² - 128x - 260 = 0

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

(x - 130 ) (x + 2)

To summarize, since -130 and 2 multiply to -260 and add up -128, you know that the following is true:

x² - 128x - 260 = (x - 130 ) (x + 2)

Multiply To One Number and Add Up To Another
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