It is stipulated that an operation a ⁃ B = AB + A-B, where a and B are real numbers, then a ⁃ B + (B-A) ⁃ B equals () A. a2-bB. b2-bC. b2D. b2-a

A ∧ B + (B-A) ∧ B, = AB + A-B + (B-A) × B + (B-A) - B, = AB + A-B + b2-ab + b-a-b, = b2-b

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