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:

8 and 78

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

8 × 78 = 624
8 + 78 = 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 + 8 ) (x + 78)

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

x² + 86x + 624 = (x + 8 ) (x + 78)

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.