What two numbers multiply to -900 and add up to -221?

Here we answer the question: "What two numbers multiply to -900 and add up to -221?"

The answer to your question is:

-225 and 4

Below we illustrate and prove that -225 and 4 multiply to -900 and add up to -221:

-225 × 4 = -900
-225 + 4 = -221

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

x² - 221x - 900 = 0

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

(x - 225 ) (x + 4)

To summarize, since -225 and 4 multiply to -900 and add up -221, you know that the following is true:

x² - 221x - 900 = (x - 225 ) (x + 4)

Multiply To One Number and Add Up To Another
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