What two numbers multiply to -420 and add up to -208?

Here we answer the question: "What two numbers multiply to -420 and add up to -208?"

The answer to your question is:

-210 and 2

Below we illustrate and prove that -210 and 2 multiply to -420 and add up to -208:

-210 × 2 = -420
-210 + 2 = -208

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

x² - 208x - 420 = 0

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

(x - 210 ) (x + 2)

To summarize, since -210 and 2 multiply to -420 and add up -208, you know that the following is true:

x² - 208x - 420 = (x - 210 ) (x + 2)

Multiply To One Number and Add Up To Another
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