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

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

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 -663:

-664 × 1 = -664
-664 + 1 = -663

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

x² - 663x - 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 -663, you know that the following is true:

x² - 663x - 664 = (x - 664 ) (x + 1)

Multiply To One Number and Add Up To Another
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