What two numbers multiply to 515 and add up to -108?

Here we answer the question: "What two numbers multiply to 515 and add up to -108?"

The answer to your question is:

-103 and -5

Below we illustrate and prove that -103 and -5 multiply to 515 and add up to -108:

-103 × -5 = 515
-103 + -5 = -108

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

x² - 108x + 515 = 0

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

(x - 103 ) (x - 5)

To summarize, since -103 and -5 multiply to 515 and add up -108, you know that the following is true:

x² - 108x + 515 = (x - 103 ) (x - 5)

Multiply To One Number and Add Up To Another
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