What two numbers multiply to -648 and add up to -73?

Here we answer the question: "What two numbers multiply to -648 and add up to -73?"

The answer to your question is:

-81 and 8

Below we illustrate and prove that -81 and 8 multiply to -648 and add up to -73:

-81 × 8 = -648
-81 + 8 = -73

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

x² - 73x - 648 = 0

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

(x - 81 ) (x + 8)

To summarize, since -81 and 8 multiply to -648 and add up -73, you know that the following is true:

x² - 73x - 648 = (x - 81 ) (x + 8)

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.