Here we answer the question: "What two numbers multiply to -522 and add up to -81?"
The answer to your question is:
-87 and 6
Below we illustrate and prove that -87 and 6 multiply to -522 and add up to -81:
-87 × 6 = -522
-87 + 6 = -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 - 87 ) (x + 6)
To summarize, since -87 and 6 multiply to -522 and add up -81, you know that the following is true:
x2 - 81x - 522 = (x - 87 ) (x + 6)
Multiply To One Number and Add Up To Another
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