x^2n+(2x)^n+4^(n-1) 因式分解

问题描述:

x^2n+(2x)^n+4^(n-1) 因式分解

x^2n+(2x)^n+4^(n-1)
=(x^n)^2+2*2^(n-1)*x^n+[2^(n-1)]^2
=[x^n+2^(n-1)]^2