What two numbers multiply to -780 and add up to 191?

Here we answer the question: "What two numbers multiply to -780 and add up to 191?"

The answer to your question is:

-4 and 195

Below we illustrate and prove that -4 and 195 multiply to -780 and add up to 191:

-4 × 195 = -780
-4 + 195 = 191

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

x² + 191x - 780 = 0

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

(x - 4 ) (x + 195)

To summarize, since -4 and 195 multiply to -780 and add up 191, you know that the following is true:

x² + 191x - 780 = (x - 4 ) (x + 195)

Multiply To One Number and Add Up To Another
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