What two numbers multiply to 390 and add up to -43?

Here we answer the question: "What two numbers multiply to 390 and add up to -43?"

The answer to your question is:

-30 and -13

Below we illustrate and prove that -30 and -13 multiply to 390 and add up to -43:

-30 × -13 = 390
-30 + -13 = -43

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

x² - 43x + 390 = 0

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

(x - 30 ) (x - 13)

To summarize, since -30 and -13 multiply to 390 and add up -43, you know that the following is true:

x² - 43x + 390 = (x - 30 ) (x - 13)

Multiply To One Number and Add Up To Another
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