What two numbers multiply to 489 and add up to -490?

Here we answer the question: "What two numbers multiply to 489 and add up to -490?"

The answer to your question is:

-489 and -1

Below we illustrate and prove that -489 and -1 multiply to 489 and add up to -490:

-489 × -1 = 489
-489 + -1 = -490

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

x² - 490x + 489 = 0

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

(x - 489 ) (x - 1)

To summarize, since -489 and -1 multiply to 489 and add up -490, you know that the following is true:

x² - 490x + 489 = (x - 489 ) (x - 1)

Multiply To One Number and Add Up To Another
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