What two numbers multiply to -810 and add up to -129?

Here we answer the question: "What two numbers multiply to -810 and add up to -129?"

The answer to your question is:

-135 and 6

Below we illustrate and prove that -135 and 6 multiply to -810 and add up to -129:

-135 × 6 = -810
-135 + 6 = -129

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

x² - 129x - 810 = 0

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

(x - 135 ) (x + 6)

To summarize, since -135 and 6 multiply to -810 and add up -129, you know that the following is true:

x² - 129x - 810 = (x - 135 ) (x + 6)

Multiply To One Number and Add Up To Another
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