What two numbers multiply to 408 and add up to -139?

Here we answer the question: "What two numbers multiply to 408 and add up to -139?"

The answer to your question is:

-136 and -3

Below we illustrate and prove that -136 and -3 multiply to 408 and add up to -139:

-136 × -3 = 408
-136 + -3 = -139

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

x² - 139x + 408 = 0

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

(x - 136 ) (x - 3)

To summarize, since -136 and -3 multiply to 408 and add up -139, you know that the following is true:

x² - 139x + 408 = (x - 136 ) (x - 3)

Multiply To One Number and Add Up To Another
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