What two numbers multiply to -328 and add up to 78?

Here we answer the question: "What two numbers multiply to -328 and add up to 78?"

The answer to your question is:

-4 and 82

Below we illustrate and prove that -4 and 82 multiply to -328 and add up to 78:

-4 × 82 = -328
-4 + 82 = 78

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

x² + 78x - 328 = 0

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

(x - 4 ) (x + 82)

To summarize, since -4 and 82 multiply to -328 and add up 78, you know that the following is true:

x² + 78x - 328 = (x - 4 ) (x + 82)

Multiply To One Number and Add Up To Another
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