What two numbers multiply to -396 and add up to 395?

Here we answer the question: "What two numbers multiply to -396 and add up to 395?"

The answer to your question is:

-1 and 396

Below we illustrate and prove that -1 and 396 multiply to -396 and add up to 395:

-1 × 396 = -396
-1 + 396 = 395

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

x² + 395x - 396 = 0

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

(x - 1 ) (x + 396)

To summarize, since -1 and 396 multiply to -396 and add up 395, you know that the following is true:

x² + 395x - 396 = (x - 1 ) (x + 396)

Multiply To One Number and Add Up To Another
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