What two numbers multiply to 400 and add up to -104?

Here we answer the question: "What two numbers multiply to 400 and add up to -104?"

The answer to your question is:

-100 and -4

Below we illustrate and prove that -100 and -4 multiply to 400 and add up to -104:

-100 × -4 = 400
-100 + -4 = -104

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

x² - 104x + 400 = 0

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

(x - 100 ) (x - 4)

To summarize, since -100 and -4 multiply to 400 and add up -104, you know that the following is true:

x² - 104x + 400 = (x - 100 ) (x - 4)

Multiply To One Number and Add Up To Another
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