What two numbers multiply to -558 and add up to 13?

Here we answer the question: "What two numbers multiply to -558 and add up to 13?"

The answer to your question is:

-18 and 31

Below we illustrate and prove that -18 and 31 multiply to -558 and add up to 13:

-18 × 31 = -558
-18 + 31 = 13

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

x² + 13x - 558 = 0

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

(x - 18 ) (x + 31)

To summarize, since -18 and 31 multiply to -558 and add up 13, you know that the following is true:

x² + 13x - 558 = (x - 18 ) (x + 31)

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.