What two numbers multiply to 664 and add up to 91?

Here we answer the question: "What two numbers multiply to 664 and add up to 91?"

The answer to your question is:

8 and 83

Below we illustrate and prove that 8 and 83 multiply to 664 and add up to 91:

8 × 83 = 664
8 + 83 = 91

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

x² + 91x + 664 = 0

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

(x + 8 ) (x + 83)

To summarize, since 8 and 83 multiply to 664 and add up 91, you know that the following is true:

x² + 91x + 664 = (x + 8 ) (x + 83)

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.