Here we answer the question: "What two numbers multiply to -969 and add up to -40?"
The answer to your question is:
-57 and 17
Below we illustrate and prove that -57 and 17 multiply to -969 and add up to -40:
-57 × 17 = -969
-57 + 17 = -40
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 40x - 969 = 0
If so, the solution to factor the quadratic equation above is:
(x - 57 ) (x + 17)
To summarize, since -57 and 17 multiply to -969 and add up -40, you know that the following is true:
x2 - 40x - 969 = (x - 57 ) (x + 17)
Multiply To One Number and Add Up To Another
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