What two numbers multiply to -756 and add up to -15?

Here we answer the question: "What two numbers multiply to -756 and add up to -15?"

The answer to your question is:

-36 and 21

Below we illustrate and prove that -36 and 21 multiply to -756 and add up to -15:

-36 × 21 = -756
-36 + 21 = -15

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

x² - 15x - 756 = 0

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

(x - 36 ) (x + 21)

To summarize, since -36 and 21 multiply to -756 and add up -15, you know that the following is true:

x² - 15x - 756 = (x - 36 ) (x + 21)

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.