(a+b)2 + (b+c)2 = Arif Khan 8 years ago A. a2 + 2b2 + 2ab + c2 + 2bc B. a2 + b2 + c2 + 2ab + 2bc C. a2 – b2 + c2 + 2ab + 2bc D. 2a2 + 2b2 + 2c2 + ab + bc
