What two numbers multiply to -220 and add up to 219?

Here we answer the question: "What two numbers multiply to -220 and add up to 219?"

The answer to your question is:

-1 and 220

Below we illustrate and prove that -1 and 220 multiply to -220 and add up to 219:

-1 × 220 = -220
-1 + 220 = 219

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

x² + 219x - 220 = 0

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

(x - 1 ) (x + 220)

To summarize, since -1 and 220 multiply to -220 and add up 219, you know that the following is true:

x² + 219x - 220 = (x - 1 ) (x + 220)

Multiply To One Number and Add Up To Another
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