What two numbers multiply to -420 and add up to -419?

Here we answer the question: "What two numbers multiply to -420 and add up to -419?"

The answer to your question is:

-420 and 1

Below we illustrate and prove that -420 and 1 multiply to -420 and add up to -419:

-420 × 1 = -420
-420 + 1 = -419

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

x² - 419x - 420 = 0

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

(x - 420 ) (x + 1)

To summarize, since -420 and 1 multiply to -420 and add up -419, you know that the following is true:

x² - 419x - 420 = (x - 420 ) (x + 1)

Multiply To One Number and Add Up To Another
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