Expand and simplify: (x2+x+1)(x2−x+1)(x^2+x+1)(x^2-x+1)(x2+x+1)(x2−x+1).
x4+x2+1x^4 + x^2 + 1x4+x2+1
x4−1x^4 - 1x4−1
x4+2x2+1x^4 + 2x^2 + 1x4+2x2+1
x4−x2+1x^4 - x^2 + 1x4−x2+1