What two numbers multiply to -198 and add up to 7?

Here we answer the question: "What two numbers multiply to -198 and add up to 7?"

The answer to your question is:

-11 and 18

Below we illustrate and prove that -11 and 18 multiply to -198 and add up to 7:

-11 × 18 = -198
-11 + 18 = 7

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

x² + 7x - 198 = 0

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

(x - 11 ) (x + 18)

To summarize, since -11 and 18 multiply to -198 and add up 7, you know that the following is true:

x² + 7x - 198 = (x - 11 ) (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.