C-03-Q043mediumsingle_mcq(a+b−c)2=?(a+b-c)^2 = ?(a+b−c)2=?aa2+b2+c2+2ab−2bc−2caa^2+b^2+c^2+2ab-2bc-2caa2+b2+c2+2ab−2bc−2caba2+b2+c2−2ab+2bc+2caa^2+b^2+c^2-2ab+2bc+2caa2+b2+c2−2ab+2bc+2caca2+b2+c2+2ab+2bc+2caa^2+b^2+c^2+2ab+2bc+2caa2+b2+c2+2ab+2bc+2cada2+b2+c2−2ab−2bc−2caa^2+b^2+c^2-2ab-2bc-2caa2+b2+c2−2ab−2bc−2ca