What two numbers multiply to 808 and add up to -406?

Here we answer the question: "What two numbers multiply to 808 and add up to -406?"

The answer to your question is:

-404 and -2

Below we illustrate and prove that -404 and -2 multiply to 808 and add up to -406:

-404 × -2 = 808
-404 + -2 = -406

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

x² - 406x + 808 = 0

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

(x - 404 ) (x - 2)

To summarize, since -404 and -2 multiply to 808 and add up -406, you know that the following is true:

x² - 406x + 808 = (x - 404 ) (x - 2)

Multiply To One Number and Add Up To Another
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