C-03-Q009mediumsingle_mcq(a+b)2=?(a+b)^2 = ?(a+b)2=?aa2+2ab+b2a^2 + 2ab + b^2a2+2ab+b2ba2−2ab+b2a^2 - 2ab + b^2a2−2ab+b2ca2+b2a^2 + b^2a2+b2da2−b2a^2 - b^2a2−b2