Simplify: (x−2)(x+2)+(x−3)(x+3)(x - 2)(x + 2) + (x - 3)(x + 3)(x−2)(x+2)+(x−3)(x+3).
2x2−132x^2 - 132x2−13
2x2+132x^2 + 132x2+13
x2−13x^2 - 13x2−13
2x2−52x^2 - 52x2−5