What two numbers multiply to -870 and add up to -139?

Here we answer the question: "What two numbers multiply to -870 and add up to -139?"

The answer to your question is:

-145 and 6

Below we illustrate and prove that -145 and 6 multiply to -870 and add up to -139:

-145 × 6 = -870
-145 + 6 = -139

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

x² - 139x - 870 = 0

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

(x - 145 ) (x + 6)

To summarize, since -145 and 6 multiply to -870 and add up -139, you know that the following is true:

x² - 139x - 870 = (x - 145 ) (x + 6)

Multiply To One Number and Add Up To Another
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