Here we answer the question: "What two numbers multiply to -261 and add up to -20?"
The answer to your question is:
-29 and 9
Below we illustrate and prove that -29 and 9 multiply to -261 and add up to -20:
-29 × 9 = -261
-29 + 9 = -20
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 20x - 261 = 0
If so, the solution to factor the quadratic equation above is:
(x - 29 ) (x + 9)
To summarize, since -29 and 9 multiply to -261 and add up -20, you know that the following is true:
x2 - 20x - 261 = (x - 29 ) (x + 9)
Multiply To One Number and Add Up To Another
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