The final result of factoring factor 2x2-4x + 2 is () A. 2x（x-2）B. 2（x2-2x+1）C. 2（x-1）2D. （2x-2）2

2x2-4x + 2 = 2 (x2-2x + 1) -- (extract common factor) = 2 (x-1) 2. -- (complete square formula), so C

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