What two numbers multiply to -408 and add up to -98?

Here we answer the question: "What two numbers multiply to -408 and add up to -98?"

The answer to your question is:

-102 and 4

Below we illustrate and prove that -102 and 4 multiply to -408 and add up to -98:

-102 × 4 = -408
-102 + 4 = -98

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

x² - 98x - 408 = 0

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

(x - 102 ) (x + 4)

To summarize, since -102 and 4 multiply to -408 and add up -98, you know that the following is true:

x² - 98x - 408 = (x - 102 ) (x + 4)

Multiply To One Number and Add Up To Another
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