What two numbers multiply to 496 and add up to -128?

Here we answer the question: "What two numbers multiply to 496 and add up to -128?"

The answer to your question is:

-124 and -4

Below we illustrate and prove that -124 and -4 multiply to 496 and add up to -128:

-124 × -4 = 496
-124 + -4 = -128

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

x² - 128x + 496 = 0

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

(x - 124 ) (x - 4)

To summarize, since -124 and -4 multiply to 496 and add up -128, you know that the following is true:

x² - 128x + 496 = (x - 124 ) (x - 4)

Multiply To One Number and Add Up To Another
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