What two numbers multiply to -668 and add up to 667?

Here we answer the question: "What two numbers multiply to -668 and add up to 667?"

The answer to your question is:

-1 and 668

Below we illustrate and prove that -1 and 668 multiply to -668 and add up to 667:

-1 × 668 = -668
-1 + 668 = 667

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

x² + 667x - 668 = 0

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

(x - 1 ) (x + 668)

To summarize, since -1 and 668 multiply to -668 and add up 667, you know that the following is true:

x² + 667x - 668 = (x - 1 ) (x + 668)

Multiply To One Number and Add Up To Another
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