Here we answer the question: "What two numbers multiply to 480 and add up to -68?"
The answer to your question is:
-60 and -8
Below we illustrate and prove that -60 and -8 multiply to 480 and add up to -68:
-60 × -8 = 480
-60 + -8 = -68
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 68x + 480 = 0
If so, the solution to factor the quadratic equation above is:
(x - 60 ) (x - 8)
To summarize, since -60 and -8 multiply to 480 and add up -68, you know that the following is true:
x2 - 68x + 480 = (x - 60 ) (x - 8)
Multiply To One Number and Add Up To Another
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