What two numbers multiply to -166 and add up to 165?

Here we answer the question: "What two numbers multiply to -166 and add up to 165?"

The answer to your question is:

-1 and 166

Below we illustrate and prove that -1 and 166 multiply to -166 and add up to 165:

-1 × 166 = -166
-1 + 166 = 165

Are you asking because you are trying to figure out how to factor the following quadratic equation?

x² + 165x - 166 = 0

If so, the solution to factor the quadratic equation above is:

(x - 1 ) (x + 166)

To summarize, since -1 and 166 multiply to -166 and add up 165, you know that the following is true:

x² + 165x - 166 = (x - 1 ) (x + 166)

Multiply To One Number and Add Up To Another
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