What two numbers multiply to -650 and add up to 649?

Here we answer the question: "What two numbers multiply to -650 and add up to 649?"

The answer to your question is:

-1 and 650

Below we illustrate and prove that -1 and 650 multiply to -650 and add up to 649:

-1 × 650 = -650
-1 + 650 = 649

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

x² + 649x - 650 = 0

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

(x - 1 ) (x + 650)

To summarize, since -1 and 650 multiply to -650 and add up 649, you know that the following is true:

x² + 649x - 650 = (x - 1 ) (x + 650)

Multiply To One Number and Add Up To Another
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