What two numbers multiply to -910 and add up to 909?

Here we answer the question: "What two numbers multiply to -910 and add up to 909?"

The answer to your question is:

-1 and 910

Below we illustrate and prove that -1 and 910 multiply to -910 and add up to 909:

-1 × 910 = -910
-1 + 910 = 909

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

x² + 909x - 910 = 0

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

(x - 1 ) (x + 910)

To summarize, since -1 and 910 multiply to -910 and add up 909, you know that the following is true:

x² + 909x - 910 = (x - 1 ) (x + 910)

Multiply To One Number and Add Up To Another
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