What two numbers multiply to -138 and add up to 137?

Here we answer the question: "What two numbers multiply to -138 and add up to 137?"

The answer to your question is:

-1 and 138

Below we illustrate and prove that -1 and 138 multiply to -138 and add up to 137:

-1 × 138 = -138
-1 + 138 = 137

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

x² + 137x - 138 = 0

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

(x - 1 ) (x + 138)

To summarize, since -1 and 138 multiply to -138 and add up 137, you know that the following is true:

x² + 137x - 138 = (x - 1 ) (x + 138)

Multiply To One Number and Add Up To Another
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