What two numbers multiply to 220 and add up to -221?

Here we answer the question: "What two numbers multiply to 220 and add up to -221?"

The answer to your question is:

-220 and -1

Below we illustrate and prove that -220 and -1 multiply to 220 and add up to -221:

-220 × -1 = 220
-220 + -1 = -221

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

x² - 221x + 220 = 0

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

(x - 220 ) (x - 1)

To summarize, since -220 and -1 multiply to 220 and add up -221, you know that the following is true:

x² - 221x + 220 = (x - 220 ) (x - 1)

Multiply To One Number and Add Up To Another
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