Here we answer the question: "What two numbers multiply to 896 and add up to -78?"
The answer to your question is:
-64 and -14
Below we illustrate and prove that -64 and -14 multiply to 896 and add up to -78:
-64 × -14 = 896
-64 + -14 = -78
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 78x + 896 = 0
If so, the solution to factor the quadratic equation above is:
(x - 64 ) (x - 14)
To summarize, since -64 and -14 multiply to 896 and add up -78, you know that the following is true:
x2 - 78x + 896 = (x - 64 ) (x - 14)
Multiply To One Number and Add Up To Another
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