What two numbers multiply to 378 and add up to -39?

Here we answer the question: "What two numbers multiply to 378 and add up to -39?"

The answer to your question is:

-21 and -18

Below we illustrate and prove that -21 and -18 multiply to 378 and add up to -39:

-21 × -18 = 378
-21 + -18 = -39

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

x² - 39x + 378 = 0

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

(x - 21 ) (x - 18)

To summarize, since -21 and -18 multiply to 378 and add up -39, you know that the following is true:

x² - 39x + 378 = (x - 21 ) (x - 18)

Multiply To One Number and Add Up To Another
Did you find the information on this page useful? Here you can solve a similar problem.