Question

x^6+x^5+2x^4+x^3+2x^2+x+1=0

Answer 1

x^6+x^5+2x^4+x^3+2x^2+x+1=0

(x^2-x+1)(x^2+x+1)^2=0

x^2-x+1=0

D=-3

нет решений