What two numbers multiply to 816 and add up to -410?

Here we answer the question: "What two numbers multiply to 816 and add up to -410?"

The answer to your question is:

-408 and -2

Below we illustrate and prove that -408 and -2 multiply to 816 and add up to -410:

-408 × -2 = 816
-408 + -2 = -410

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

x² - 410x + 816 = 0

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

(x - 408 ) (x - 2)

To summarize, since -408 and -2 multiply to 816 and add up -410, you know that the following is true:

x² - 410x + 816 = (x - 408 ) (x - 2)

Multiply To One Number and Add Up To Another
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