Here we answer the question: "What two numbers multiply to -170 and add up to 83?"
The answer to your question is:
-2 and 85
Below we illustrate and prove that -2 and 85 multiply to -170 and add up to 83:
-2 × 85 = -170
-2 + 85 = 83
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 + 83x - 170 = 0
If so, the solution to factor the quadratic equation above is:
(x - 2 ) (x + 85)
To summarize, since -2 and 85 multiply to -170 and add up 83, you know that the following is true:
x2 + 83x - 170 = (x - 2 ) (x + 85)
Multiply To One Number and Add Up To Another
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