What two numbers multiply to -220 and add up to -51?

Here we answer the question: "What two numbers multiply to -220 and add up to -51?"

The answer to your question is:

-55 and 4

Below we illustrate and prove that -55 and 4 multiply to -220 and add up to -51:

-55 × 4 = -220
-55 + 4 = -51

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

x² - 51x - 220 = 0

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

(x - 55 ) (x + 4)

To summarize, since -55 and 4 multiply to -220 and add up -51, you know that the following is true:

x² - 51x - 220 = (x - 55 ) (x + 4)

Multiply To One Number and Add Up To Another
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