The answer is -1, using finding the domain. I don't know the work to get the answer -1 though.
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I didn't understand your question completely, but from what I understood here is your solution:


By splitting the middle term

x^2 - 2x + x -2 =0

x(x-2) +1(x-2) =0

Taking (x-2) common,


So, either x = 2 or x = -1

by Level 6 User (24.2k points)

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