What two numbers multiply to -648 and add up to -102?

Here we answer the question: "What two numbers multiply to -648 and add up to -102?"

The answer to your question is:

-108 and 6

Below we illustrate and prove that -108 and 6 multiply to -648 and add up to -102:

-108 × 6 = -648
-108 + 6 = -102

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

x² - 102x - 648 = 0

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

(x - 108 ) (x + 6)

To summarize, since -108 and 6 multiply to -648 and add up -102, you know that the following is true:

x² - 102x - 648 = (x - 108 ) (x + 6)

Multiply To One Number and Add Up To Another
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