What two numbers multiply to -320 and add up to 76?

Here we answer the question: "What two numbers multiply to -320 and add up to 76?"

The answer to your question is:

-4 and 80

Below we illustrate and prove that -4 and 80 multiply to -320 and add up to 76:

-4 × 80 = -320
-4 + 80 = 76

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

x² + 76x - 320 = 0

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

(x - 4 ) (x + 80)

To summarize, since -4 and 80 multiply to -320 and add up 76, you know that the following is true:

x² + 76x - 320 = (x - 4 ) (x + 80)

Multiply To One Number and Add Up To Another
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