What two numbers multiply to -712 and add up to -81?

Here we answer the question: "What two numbers multiply to -712 and add up to -81?"

The answer to your question is:

-89 and 8

Below we illustrate and prove that -89 and 8 multiply to -712 and add up to -81:

-89 × 8 = -712
-89 + 8 = -81

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

x² - 81x - 712 = 0

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

(x - 89 ) (x + 8)

To summarize, since -89 and 8 multiply to -712 and add up -81, you know that the following is true:

x² - 81x - 712 = (x - 89 ) (x + 8)

Multiply To One Number and Add Up To Another
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