What two numbers multiply to -256 and add up to -126?

Here we answer the question: "What two numbers multiply to -256 and add up to -126?"

The answer to your question is:

-128 and 2

Below we illustrate and prove that -128 and 2 multiply to -256 and add up to -126:

-128 × 2 = -256
-128 + 2 = -126

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

x² - 126x - 256 = 0

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

(x - 128 ) (x + 2)

To summarize, since -128 and 2 multiply to -256 and add up -126, you know that the following is true:

x² - 126x - 256 = (x - 128 ) (x + 2)

Multiply To One Number and Add Up To Another
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