Question

Fatore $a^{10} + a^{5} + 1$    e          $a^{14} + a^{7} + 1$

Answer 1

$\boxed{a^{10}+a^5+1~\to~a^5(a^5+1)+1}$

$\boxed{a^{14}+a^7+1~\to~a^7(a^7+1)+1}}$