/ n \ / n \ \x - 2/*\x + 2/
(x^n - 1*2)*(x^n + 2)
/ n\ / n\ \-2 + x /*\2 + x /
(-2 + x^n)*(2 + x^n)
/ n\ / n\ \-2 + x /*\2 + x /
(-2 + x^n)*(2 + x^n)
/ n\ / n\ \-2 + x /*\2 + x /
(-2 + x^n)*(2 + x^n)
/ n\ / n\ \-2 + x /*\2 + x /
(-2 + x^n)*(2 + x^n)
2*n -4 + x
/ n\ / n\ \-2 + x /*\2 + x /
(-2 + x^n)*(2 + x^n)