What two numbers multiply to -672 and add up to 671?

Here we answer the question: "What two numbers multiply to -672 and add up to 671?"

The answer to your question is:

-1 and 672

Below we illustrate and prove that -1 and 672 multiply to -672 and add up to 671:

-1 × 672 = -672
-1 + 672 = 671

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

x² + 671x - 672 = 0

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

(x - 1 ) (x + 672)

To summarize, since -1 and 672 multiply to -672 and add up 671, you know that the following is true:

x² + 671x - 672 = (x - 1 ) (x + 672)

Multiply To One Number and Add Up To Another
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