C-03-Q113mediumsingle_mcq(a+b+c)2−(a−b−c)2=?(a+b+c)^2 - (a-b-c)^2 = ?(a+b+c)2−(a−b−c)2=?a4a(b+c)4a(b+c)4a(b+c)b4a4a4ac4bc4bc