Question

x^7+x^5+1因式分解，要过程，详细点，请高手解答

Answer 1

x^7+x^5+1
=(x^7+x^6+x^5)+(1-x^6)
=x^5(x^2+x+1)+(1+x^3)(1-x)(1+x+x^2)
=(x^2+x+1)(x^5-x^4+x^3-x+1)

Answer 2

x^7+x^5+1
=(x^7+x^6+x^5)+(1-x^6)
=x^5(x²+x+1)+(1+x³)(1-x)(1+x+x²)
=(x²+x+1)(x^5-x^4+x³-x+1)