What two numbers multiply to -690 and add up to 133?

Here we answer the question: "What two numbers multiply to -690 and add up to 133?"

The answer to your question is:

-5 and 138

Below we illustrate and prove that -5 and 138 multiply to -690 and add up to 133:

-5 × 138 = -690
-5 + 138 = 133

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

x² + 133x - 690 = 0

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

(x - 5 ) (x + 138)

To summarize, since -5 and 138 multiply to -690 and add up 133, you know that the following is true:

x² + 133x - 690 = (x - 5 ) (x + 138)

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.