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F x x2 2 x2 4

F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4F x x2 2 x2 4