求算该多项式的因式分解 X^5n+2x^3n+2x^2n+2x^n+1

问题描述:

求算该多项式的因式分解 X^5n+2x^3n+2x^2n+2x^n+1

不对吧,漏了+2x^4n原式=(x%5n-1)+2x^4n+2x^3n+2x^2n+2x^n+2=(x^n-1)(x^4n+x^3n+x^2n+x^n+1)+2(x^4n+x^3n+x^2n+x^n+1)=(x^4n+x^3n+x^2n+x^n+1)(x^n-1+2)=(x^n+1)(x^4n+x^3n+x^2n+x^n+1)原题中没有可以肯定地说这是没法分解的