What two numbers multiply to -678 and add up to -677?

Here we answer the question: "What two numbers multiply to -678 and add up to -677?"

The answer to your question is:

-678 and 1

Below we illustrate and prove that -678 and 1 multiply to -678 and add up to -677:

-678 × 1 = -678
-678 + 1 = -677

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

x² - 677x - 678 = 0

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

(x - 678 ) (x + 1)

To summarize, since -678 and 1 multiply to -678 and add up -677, you know that the following is true:

x² - 677x - 678 = (x - 678 ) (x + 1)

Multiply To One Number and Add Up To Another
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