Simplify: (x+2)2+(x−2)2(x + 2)^2 + (x - 2)^2(x+2)2+(x−2)2.
2x2+82x^2 + 82x2+8
2x2−82x^2 - 82x2−8
2x22x^22x2
4x2+84x^2 + 84x2+8