What two numbers multiply to -666 and add up to -665?

Here we answer the question: "What two numbers multiply to -666 and add up to -665?"

The answer to your question is:

-666 and 1

Below we illustrate and prove that -666 and 1 multiply to -666 and add up to -665:

-666 × 1 = -666
-666 + 1 = -665

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

x² - 665x - 666 = 0

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

(x - 666 ) (x + 1)

To summarize, since -666 and 1 multiply to -666 and add up -665, you know that the following is true:

x² - 665x - 666 = (x - 666 ) (x + 1)

Multiply To One Number and Add Up To Another
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