What two numbers multiply to -846 and add up to 421?

Here we answer the question: "What two numbers multiply to -846 and add up to 421?"

The answer to your question is:

-2 and 423

Below we illustrate and prove that -2 and 423 multiply to -846 and add up to 421:

-2 × 423 = -846
-2 + 423 = 421

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

x² + 421x - 846 = 0

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

(x - 2 ) (x + 423)

To summarize, since -2 and 423 multiply to -846 and add up 421, you know that the following is true:

x² + 421x - 846 = (x - 2 ) (x + 423)

Multiply To One Number and Add Up To Another
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