What two numbers multiply to -522 and add up to 81?




Here we answer the question: "What two numbers multiply to -522 and add up to 81?"

The answer to your question is:

-6 and 87


Below we illustrate and prove that -6 and 87 multiply to -522 and add up to 81:

-6 × 87 = -522
-6 + 87 = 81

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

x2 + 81x - 522 = 0

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

(x - 6 ) (x + 87)

To summarize, since -6 and 87 multiply to -522 and add up 81, you know that the following is true:

x2 + 81x - 522 = (x - 6 ) (x + 87)


Multiply To One Number and Add Up To Another
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