What is the expansion of (a+b+c)2(a + b + c)^2(a+b+c)2?
a2+b2+c2+2ab+2bc+2aca^2 + b^2 + c^2 + 2ab + 2bc + 2aca2+b2+c2+2ab+2bc+2ac
a2+b2+c2a^2 + b^2 + c^2a2+b2+c2
a2+b2+c2+ab+bc+aca^2 + b^2 + c^2 + ab + bc + aca2+b2+c2+ab+bc+ac
a2+b2+c2+2abca^2 + b^2 + c^2 + 2abca2+b2+c2+2abc