What two numbers multiply to -905 and add up to 904?

Here we answer the question: "What two numbers multiply to -905 and add up to 904?"

The answer to your question is:

-1 and 905

Below we illustrate and prove that -1 and 905 multiply to -905 and add up to 904:

-1 × 905 = -905
-1 + 905 = 904

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

x² + 904x - 905 = 0

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

(x - 1 ) (x + 905)

To summarize, since -1 and 905 multiply to -905 and add up 904, you know that the following is true:

x² + 904x - 905 = (x - 1 ) (x + 905)

Multiply To One Number and Add Up To Another
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