What two numbers multiply to 644 and add up to 99?

Here we answer the question: "What two numbers multiply to 644 and add up to 99?"

The answer to your question is:

7 and 92

Below we illustrate and prove that 7 and 92 multiply to 644 and add up to 99:

7 × 92 = 644
7 + 92 = 99

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

x² + 99x + 644 = 0

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

(x + 7 ) (x + 92)

To summarize, since 7 and 92 multiply to 644 and add up 99, you know that the following is true:

x² + 99x + 644 = (x + 7 ) (x + 92)

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.