What two numbers multiply to -720 and add up to -139?

Here we answer the question: "What two numbers multiply to -720 and add up to -139?"

The answer to your question is:

-144 and 5

Below we illustrate and prove that -144 and 5 multiply to -720 and add up to -139:

-144 × 5 = -720
-144 + 5 = -139

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

x² - 139x - 720 = 0

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

(x - 144 ) (x + 5)

To summarize, since -144 and 5 multiply to -720 and add up -139, you know that the following is true:

x² - 139x - 720 = (x - 144 ) (x + 5)

Multiply To One Number and Add Up To Another
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