What two numbers multiply to 664 and add up to -665?

Here we answer the question: "What two numbers multiply to 664 and add up to -665?"

The answer to your question is:

-664 and -1

Below we illustrate and prove that -664 and -1 multiply to 664 and add up to -665:

-664 × -1 = 664
-664 + -1 = -665

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

x² - 665x + 664 = 0

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

(x - 664 ) (x - 1)

To summarize, since -664 and -1 multiply to 664 and add up -665, you know that the following is true:

x² - 665x + 664 = (x - 664 ) (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.