What two numbers multiply to -784 and add up to 783?

Here we answer the question: "What two numbers multiply to -784 and add up to 783?"

The answer to your question is:

-1 and 784

Below we illustrate and prove that -1 and 784 multiply to -784 and add up to 783:

-1 × 784 = -784
-1 + 784 = 783

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

x² + 783x - 784 = 0

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

(x - 1 ) (x + 784)

To summarize, since -1 and 784 multiply to -784 and add up 783, you know that the following is true:

x² + 783x - 784 = (x - 1 ) (x + 784)

Multiply To One Number and Add Up To Another
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