What two numbers multiply to 663 and add up to -664?

Here we answer the question: "What two numbers multiply to 663 and add up to -664?"

The answer to your question is:

-663 and -1

Below we illustrate and prove that -663 and -1 multiply to 663 and add up to -664:

-663 × -1 = 663
-663 + -1 = -664

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

x² - 664x + 663 = 0

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

(x - 663 ) (x - 1)

To summarize, since -663 and -1 multiply to 663 and add up -664, you know that the following is true:

x² - 664x + 663 = (x - 663 ) (x - 1)

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.