What two numbers multiply to -990 and add up to -23?

Here we answer the question: "What two numbers multiply to -990 and add up to -23?"

The answer to your question is:

-45 and 22

Below we illustrate and prove that -45 and 22 multiply to -990 and add up to -23:

-45 × 22 = -990
-45 + 22 = -23

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

x² - 23x - 990 = 0

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

(x - 45 ) (x + 22)

To summarize, since -45 and 22 multiply to -990 and add up -23, you know that the following is true:

x² - 23x - 990 = (x - 45 ) (x + 22)

Multiply To One Number and Add Up To Another
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