=(х² -1)(x^4 +х² +1)=(x -1)(x+1)(x^4 +х² +1)
x^6-у^6 = (x^3)^2-(у^3)^2 =
(x^3-у^3)(x^3+у^3)=
(x-y)(x^2+xy+y^2)(x+y)(x^2-xy+y^2)
=(х² -1)(x^4 +х² +1)=(x -1)(x+1)(x^4 +х² +1)
x^6-у^6 = (x^3)^2-(у^3)^2 =
(x^3-у^3)(x^3+у^3)=
(x-y)(x^2+xy+y^2)(x+y)(x^2-xy+y^2)