What two numbers multiply to 624 and add up to -86?

Here we answer the question: "What two numbers multiply to 624 and add up to -86?"

The answer to your question is:

-78 and -8

Below we illustrate and prove that -78 and -8 multiply to 624 and add up to -86:

-78 × -8 = 624
-78 + -8 = -86

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

x² - 86x + 624 = 0

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

(x - 78 ) (x - 8)

To summarize, since -78 and -8 multiply to 624 and add up -86, you know that the following is true:

x² - 86x + 624 = (x - 78 ) (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.