What two numbers multiply to -424 and add up to 210?

Here we answer the question: "What two numbers multiply to -424 and add up to 210?"

The answer to your question is:

-2 and 212

Below we illustrate and prove that -2 and 212 multiply to -424 and add up to 210:

-2 × 212 = -424
-2 + 212 = 210

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

x² + 210x - 424 = 0

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

(x - 2 ) (x + 212)

To summarize, since -2 and 212 multiply to -424 and add up 210, you know that the following is true:

x² + 210x - 424 = (x - 2 ) (x + 212)

Multiply To One Number and Add Up To Another
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