What two numbers multiply to 710 and add up to -81?

Here we answer the question: "What two numbers multiply to 710 and add up to -81?"

The answer to your question is:

-71 and -10

Below we illustrate and prove that -71 and -10 multiply to 710 and add up to -81:

-71 × -10 = 710
-71 + -10 = -81

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

x² - 81x + 710 = 0

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

(x - 71 ) (x - 10)

To summarize, since -71 and -10 multiply to 710 and add up -81, you know that the following is true:

x² - 81x + 710 = (x - 71 ) (x - 10)

Multiply To One Number and Add Up To Another
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