What two numbers multiply to -440 and add up to 218?

Here we answer the question: "What two numbers multiply to -440 and add up to 218?"

The answer to your question is:

-2 and 220

Below we illustrate and prove that -2 and 220 multiply to -440 and add up to 218:

-2 × 220 = -440
-2 + 220 = 218

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

x² + 218x - 440 = 0

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

(x - 2 ) (x + 220)

To summarize, since -2 and 220 multiply to -440 and add up 218, you know that the following is true:

x² + 218x - 440 = (x - 2 ) (x + 220)

Multiply To One Number and Add Up To Another
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