Here we answer the question: "What two numbers multiply to -240 and add up to 22?"
The answer to your question is:
-8 and 30
Below we illustrate and prove that -8 and 30 multiply to -240 and add up to 22:
-8 × 30 = -240
-8 + 30 = 22
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 + 22x - 240 = 0
If so, the solution to factor the quadratic equation above is:
(x - 8 ) (x + 30)
To summarize, since -8 and 30 multiply to -240 and add up 22, you know that the following is true:
x2 + 22x - 240 = (x - 8 ) (x + 30)
Multiply To One Number and Add Up To Another
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