Here we answer the question: "What two numbers multiply to -286 and add up to -9?"
The answer to your question is:
-22 and 13
Below we illustrate and prove that -22 and 13 multiply to -286 and add up to -9:
-22 × 13 = -286
-22 + 13 = -9
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 9x - 286 = 0
If so, the solution to factor the quadratic equation above is:
(x - 22 ) (x + 13)
To summarize, since -22 and 13 multiply to -286 and add up -9, you know that the following is true:
x2 - 9x - 286 = (x - 22 ) (x + 13)
Multiply To One Number and Add Up To Another
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