Here we answer the question: "What two numbers multiply to -656 and add up to -74?"
The answer to your question is:
-82 and 8
Below we illustrate and prove that -82 and 8 multiply to -656 and add up to -74:
-82 × 8 = -656
-82 + 8 = -74
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 74x - 656 = 0
If so, the solution to factor the quadratic equation above is:
(x - 82 ) (x + 8)
To summarize, since -82 and 8 multiply to -656 and add up -74, you know that the following is true:
x2 - 74x - 656 = (x - 82 ) (x + 8)
Multiply To One Number and Add Up To Another
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