What two numbers multiply to -818 and add up to 817?

Here we answer the question: "What two numbers multiply to -818 and add up to 817?"

The answer to your question is:

-1 and 818

Below we illustrate and prove that -1 and 818 multiply to -818 and add up to 817:

-1 × 818 = -818
-1 + 818 = 817

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

x² + 817x - 818 = 0

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

(x - 1 ) (x + 818)

To summarize, since -1 and 818 multiply to -818 and add up 817, you know that the following is true:

x² + 817x - 818 = (x - 1 ) (x + 818)

Multiply To One Number and Add Up To Another
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