Simplify: (a+b+c)2−(a2+b2+c2)(a + b + c)^2 - (a^2 + b^2 + c^2)(a+b+c)2−(a2+b2+c2).
2ab+2bc+2ac2ab + 2bc + 2ac2ab+2bc+2ac
ab+bc+acab + bc + acab+bc+ac
2(a+b+c)2(a+b+c)2(a+b+c)
000