What two numbers multiply to 399 and add up to -136?

Here we answer the question: "What two numbers multiply to 399 and add up to -136?"

The answer to your question is:

-133 and -3

Below we illustrate and prove that -133 and -3 multiply to 399 and add up to -136:

-133 × -3 = 399
-133 + -3 = -136

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

x² - 136x + 399 = 0

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

(x - 133 ) (x - 3)

To summarize, since -133 and -3 multiply to 399 and add up -136, you know that the following is true:

x² - 136x + 399 = (x - 133 ) (x - 3)

Multiply To One Number and Add Up To Another
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