What two numbers multiply to -646 and add up to -321?

Here we answer the question: "What two numbers multiply to -646 and add up to -321?"

The answer to your question is:

-323 and 2

Below we illustrate and prove that -323 and 2 multiply to -646 and add up to -321:

-323 × 2 = -646
-323 + 2 = -321

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

x² - 321x - 646 = 0

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

(x - 323 ) (x + 2)

To summarize, since -323 and 2 multiply to -646 and add up -321, you know that the following is true:

x² - 321x - 646 = (x - 323 ) (x + 2)

Multiply To One Number and Add Up To Another
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