What two numbers multiply to -390 and add up to 127?

Here we answer the question: "What two numbers multiply to -390 and add up to 127?"

The answer to your question is:

-3 and 130

Below we illustrate and prove that -3 and 130 multiply to -390 and add up to 127:

-3 × 130 = -390
-3 + 130 = 127

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

x² + 127x - 390 = 0

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

(x - 3 ) (x + 130)

To summarize, since -3 and 130 multiply to -390 and add up 127, you know that the following is true:

x² + 127x - 390 = (x - 3 ) (x + 130)

Multiply To One Number and Add Up To Another
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