What two numbers multiply to -939 and add up to 938?

Here we answer the question: "What two numbers multiply to -939 and add up to 938?"

The answer to your question is:

-1 and 939

Below we illustrate and prove that -1 and 939 multiply to -939 and add up to 938:

-1 × 939 = -939
-1 + 939 = 938

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

x² + 938x - 939 = 0

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

(x - 1 ) (x + 939)

To summarize, since -1 and 939 multiply to -939 and add up 938, you know that the following is true:

x² + 938x - 939 = (x - 1 ) (x + 939)

Multiply To One Number and Add Up To Another
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