Here we answer the question: "What two numbers multiply to -880 and add up to -18?"
The answer to your question is:
-40 and 22
Below we illustrate and prove that -40 and 22 multiply to -880 and add up to -18:
-40 × 22 = -880
-40 + 22 = -18
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 18x - 880 = 0
If so, the solution to factor the quadratic equation above is:
(x - 40 ) (x + 22)
To summarize, since -40 and 22 multiply to -880 and add up -18, you know that the following is true:
x2 - 18x - 880 = (x - 40 ) (x + 22)
Multiply To One Number and Add Up To Another
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