What two numbers multiply to -396 and add up to 129?

Here we answer the question: "What two numbers multiply to -396 and add up to 129?"

The answer to your question is:

-3 and 132

Below we illustrate and prove that -3 and 132 multiply to -396 and add up to 129:

-3 × 132 = -396
-3 + 132 = 129

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

x² + 129x - 396 = 0

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

(x - 3 ) (x + 132)

To summarize, since -3 and 132 multiply to -396 and add up 129, you know that the following is true:

x² + 129x - 396 = (x - 3 ) (x + 132)

Multiply To One Number and Add Up To Another
Did you find the information on this page useful? Here you can solve a similar problem.