Here we answer the question: "What two numbers multiply to 880 and add up to -71?"
The answer to your question is:
-55 and -16
Below we illustrate and prove that -55 and -16 multiply to 880 and add up to -71:
-55 × -16 = 880
-55 + -16 = -71
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 71x + 880 = 0
If so, the solution to factor the quadratic equation above is:
(x - 55 ) (x - 16)
To summarize, since -55 and -16 multiply to 880 and add up -71, you know that the following is true:
x2 - 71x + 880 = (x - 55 ) (x - 16)
Multiply To One Number and Add Up To Another
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