Here we answer the question: "What two numbers multiply to 240 and add up to -64?"
The answer to your question is:
-60 and -4
Below we illustrate and prove that -60 and -4 multiply to 240 and add up to -64:
-60 × -4 = 240
-60 + -4 = -64
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 64x + 240 = 0
If so, the solution to factor the quadratic equation above is:
(x - 60 ) (x - 4)
To summarize, since -60 and -4 multiply to 240 and add up -64, you know that the following is true:
x2 - 64x + 240 = (x - 60 ) (x - 4)
Multiply To One Number and Add Up To Another
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