分解因式 a^3n-4a^2n-16a^n+64

分类: 作业答案 • 2022-01-09 18:02:27

问题描述：

答

a^3n-4a^2n-16a^n+64
=a^2n(a^n-4)-16(a^n-4)
=(a^2n-16)(a^n-4)
=(a^n+4)(a^n-4)(a^n-4)
=(a^n+4)(a^n-4)²