What two numbers multiply to -999 and add up to -998?

Here we answer the question: "What two numbers multiply to -999 and add up to -998?"

The answer to your question is:

-999 and 1

Below we illustrate and prove that -999 and 1 multiply to -999 and add up to -998:

-999 × 1 = -999
-999 + 1 = -998

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

x² - 998x - 999 = 0

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

(x - 999 ) (x + 1)

To summarize, since -999 and 1 multiply to -999 and add up -998, you know that the following is true:

x² - 998x - 999 = (x - 999 ) (x + 1)

Multiply To One Number and Add Up To Another
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