What two numbers multiply to 421 and add up to -422?

Here we answer the question: "What two numbers multiply to 421 and add up to -422?"

The answer to your question is:

-421 and -1

Below we illustrate and prove that -421 and -1 multiply to 421 and add up to -422:

-421 × -1 = 421
-421 + -1 = -422

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

x² - 422x + 421 = 0

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

(x - 421 ) (x - 1)

To summarize, since -421 and -1 multiply to 421 and add up -422, you know that the following is true:

x² - 422x + 421 = (x - 421 ) (x - 1)

Multiply To One Number and Add Up To Another
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