What two numbers multiply to -39 and add up to -38?

Here we answer the question: "What two numbers multiply to -39 and add up to -38?"

The answer to your question is:

-39 and 1

Below we illustrate and prove that -39 and 1 multiply to -39 and add up to -38:

-39 × 1 = -39
-39 + 1 = -38

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

x² - 38x - 39 = 0

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

(x - 39 ) (x + 1)

To summarize, since -39 and 1 multiply to -39 and add up -38, you know that the following is true:

x² - 38x - 39 = (x - 39 ) (x + 1)

Multiply To One Number and Add Up To Another
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