What two numbers multiply to 581 and add up to -90?

Here we answer the question: "What two numbers multiply to 581 and add up to -90?"

The answer to your question is:

-83 and -7

Below we illustrate and prove that -83 and -7 multiply to 581 and add up to -90:

-83 × -7 = 581
-83 + -7 = -90

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

x² - 90x + 581 = 0

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

(x - 83 ) (x - 7)

To summarize, since -83 and -7 multiply to 581 and add up -90, you know that the following is true:

x² - 90x + 581 = (x - 83 ) (x - 7)

Multiply To One Number and Add Up To Another
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