What two numbers multiply to 816 and add up to -817?

Here we answer the question: "What two numbers multiply to 816 and add up to -817?"

The answer to your question is:

-816 and -1

Below we illustrate and prove that -816 and -1 multiply to 816 and add up to -817:

-816 × -1 = 816
-816 + -1 = -817

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

x² - 817x + 816 = 0

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

(x - 816 ) (x - 1)

To summarize, since -816 and -1 multiply to 816 and add up -817, you know that the following is true:

x² - 817x + 816 = (x - 816 ) (x - 1)

Multiply To One Number and Add Up To Another
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