What two numbers multiply to -890 and add up to 889?

Here we answer the question: "What two numbers multiply to -890 and add up to 889?"

The answer to your question is:

-1 and 890

Below we illustrate and prove that -1 and 890 multiply to -890 and add up to 889:

-1 × 890 = -890
-1 + 890 = 889

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

x² + 889x - 890 = 0

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

(x - 1 ) (x + 890)

To summarize, since -1 and 890 multiply to -890 and add up 889, you know that the following is true:

x² + 889x - 890 = (x - 1 ) (x + 890)

Multiply To One Number and Add Up To Another
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