What two numbers multiply to -810 and add up to -71?




Here we answer the question: "What two numbers multiply to -810 and add up to -71?"

The answer to your question is:

-81 and 10


Below we illustrate and prove that -81 and 10 multiply to -810 and add up to -71:

-81 × 10 = -810
-81 + 10 = -71

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

x2 - 71x - 810 = 0

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

(x - 81 ) (x + 10)

To summarize, since -81 and 10 multiply to -810 and add up -71, you know that the following is true:

x2 - 71x - 810 = (x - 81 ) (x + 10)


Multiply To One Number and Add Up To Another
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