Here we answer the question: "What two numbers multiply to 728 and add up to -69?"
The answer to your question is:
-56 and -13
Below we illustrate and prove that -56 and -13 multiply to 728 and add up to -69:
-56 × -13 = 728
-56 + -13 = -69
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 69x + 728 = 0
If so, the solution to factor the quadratic equation above is:
(x - 56 ) (x - 13)
To summarize, since -56 and -13 multiply to 728 and add up -69, you know that the following is true:
x2 - 69x + 728 = (x - 56 ) (x - 13)
Multiply To One Number and Add Up To Another
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