What two numbers multiply to 320 and add up to -321?

Here we answer the question: "What two numbers multiply to 320 and add up to -321?"

The answer to your question is:

-320 and -1

Below we illustrate and prove that -320 and -1 multiply to 320 and add up to -321:

-320 × -1 = 320
-320 + -1 = -321

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

x² - 321x + 320 = 0

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

(x - 320 ) (x - 1)

To summarize, since -320 and -1 multiply to 320 and add up -321, you know that the following is true:

x² - 321x + 320 = (x - 320 ) (x - 1)

Multiply To One Number and Add Up To Another
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