What two numbers multiply to -861 and add up to 20?




Here we answer the question: "What two numbers multiply to -861 and add up to 20?"

The answer to your question is:

-21 and 41


Below we illustrate and prove that -21 and 41 multiply to -861 and add up to 20:

-21 × 41 = -861
-21 + 41 = 20

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

x2 + 20x - 861 = 0

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

(x - 21 ) (x + 41)

To summarize, since -21 and 41 multiply to -861 and add up 20, you know that the following is true:

x2 + 20x - 861 = (x - 21 ) (x + 41)


Multiply To One Number and Add Up To Another
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