What two numbers multiply to -642 and add up to -101?

Here we answer the question: "What two numbers multiply to -642 and add up to -101?"

The answer to your question is:

-107 and 6

Below we illustrate and prove that -107 and 6 multiply to -642 and add up to -101:

-107 × 6 = -642
-107 + 6 = -101

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

x² - 101x - 642 = 0

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

(x - 107 ) (x + 6)

To summarize, since -107 and 6 multiply to -642 and add up -101, you know that the following is true:

x² - 101x - 642 = (x - 107 ) (x + 6)

Multiply To One Number and Add Up To Another
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