What two numbers multiply to 261 and add up to -90?

Here we answer the question: "What two numbers multiply to 261 and add up to -90?"

The answer to your question is:

-87 and -3

Below we illustrate and prove that -87 and -3 multiply to 261 and add up to -90:

-87 × -3 = 261
-87 + -3 = -90

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

x² - 90x + 261 = 0

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

(x - 87 ) (x - 3)

To summarize, since -87 and -3 multiply to 261 and add up -90, you know that the following is true:

x² - 90x + 261 = (x - 87 ) (x - 3)

Multiply To One Number and Add Up To Another
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