(x^4n+16)(x^n-2)(x^2n+4)(x^n+2)=

问题描述:

(x^4n+16)(x^n-2)(x^2n+4)(x^n+2)=

(x^4n+16)(x^n-2)(x^2n+4)(x^n+2)
=(x^4n+16)(x^2n+4)(x^2n-4)
= (x^4n+16)(x^4n -16)
= x^8n+16²
= x^8n+256