What two numbers multiply to -864 and add up to -138?

Here we answer the question: "What two numbers multiply to -864 and add up to -138?"

The answer to your question is:

-144 and 6

Below we illustrate and prove that -144 and 6 multiply to -864 and add up to -138:

-144 × 6 = -864
-144 + 6 = -138

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

x² - 138x - 864 = 0

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

(x - 144 ) (x + 6)

To summarize, since -144 and 6 multiply to -864 and add up -138, you know that the following is true:

x² - 138x - 864 = (x - 144 ) (x + 6)

Multiply To One Number and Add Up To Another
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