Đáp án:
$\begin{array}{l}
\left( {{x^2} - 2x + 2} \right)\left( {{x^2} - 2} \right)\left( {{x^2} + 2x + 2} \right)\left( {{x^2} + 2} \right)\\
= \left[ {{{\left( {{x^2} + 2} \right)}^2} - {{\left( {2x} \right)}^2}} \right]\left( {{x^4} - 4} \right)\\
= \left( {{x^4} + 4{x^2} + 4 - 4{x^2}} \right)\left( {{x^4} - 4} \right)\\
= \left( {{x^4} + 4} \right)\left( {{x^4} - 4} \right)\\
= {x^8} - 16
\end{array}$
