What two numbers multiply to -882 and add up to -21?

Here we answer the question: "What two numbers multiply to -882 and add up to -21?"

The answer to your question is:

-42 and 21

Below we illustrate and prove that -42 and 21 multiply to -882 and add up to -21:

-42 × 21 = -882
-42 + 21 = -21

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

x² - 21x - 882 = 0

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

(x - 42 ) (x + 21)

To summarize, since -42 and 21 multiply to -882 and add up -21, you know that the following is true:

x² - 21x - 882 = (x - 42 ) (x + 21)

Multiply To One Number and Add Up To Another
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