Here we answer the question: "What two numbers multiply to -728 and add up to 38?"
The answer to your question is:
-14 and 52
Below we illustrate and prove that -14 and 52 multiply to -728 and add up to 38:
-14 × 52 = -728
-14 + 52 = 38
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 + 38x - 728 = 0
If so, the solution to factor the quadratic equation above is:
(x - 14 ) (x + 52)
To summarize, since -14 and 52 multiply to -728 and add up 38, you know that the following is true:
x2 + 38x - 728 = (x - 14 ) (x + 52)
Multiply To One Number and Add Up To Another
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