What two numbers multiply to -999 and add up to 102?

Here we answer the question: "What two numbers multiply to -999 and add up to 102?"

The answer to your question is:

-9 and 111

Below we illustrate and prove that -9 and 111 multiply to -999 and add up to 102:

-9 × 111 = -999
-9 + 111 = 102

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

x² + 102x - 999 = 0

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

(x - 9 ) (x + 111)

To summarize, since -9 and 111 multiply to -999 and add up 102, you know that the following is true:

x² + 102x - 999 = (x - 9 ) (x + 111)

Multiply To One Number and Add Up To Another
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