What two numbers multiply to -842 and add up to 419?

Here we answer the question: "What two numbers multiply to -842 and add up to 419?"

The answer to your question is:

-2 and 421

Below we illustrate and prove that -2 and 421 multiply to -842 and add up to 419:

-2 × 421 = -842
-2 + 421 = 419

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

x² + 419x - 842 = 0

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

(x - 2 ) (x + 421)

To summarize, since -2 and 421 multiply to -842 and add up 419, you know that the following is true:

x² + 419x - 842 = (x - 2 ) (x + 421)

Multiply To One Number and Add Up To Another
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