What two numbers multiply to -910 and add up to -81?

Here we answer the question: "What two numbers multiply to -910 and add up to -81?"

The answer to your question is:

-91 and 10

Below we illustrate and prove that -91 and 10 multiply to -910 and add up to -81:

-91 × 10 = -910
-91 + 10 = -81

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

x² - 81x - 910 = 0

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

(x - 91 ) (x + 10)

To summarize, since -91 and 10 multiply to -910 and add up -81, you know that the following is true:

x² - 81x - 910 = (x - 91 ) (x + 10)

Multiply To One Number and Add Up To Another
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