化简a^2n-6`(a^2)^3+(x-a^n)(x+a^n)-(x-1)^2
问题描述：
化简a^2n-6`(a^2)^3+(x-a^n)(x+a^n)-(x-1)^2
答
a^2n-6`(a^2)^3+(x-a^n)(x+a^n)-(x-1)^2
=a^2n-6*a^6+x^2-a^2n-(x^2-2x+1)
=a^2n-a^2n+x^2-x^2+2x-1
=2x-1