#Ban tham khao:
x^16 - 1 ( x^8)² - 1² = ( x^8 - 1) ( x^8 + 1)
=[ (x^4)² - 1² ] ( x^8 + 1)
= ( x^4 - 1) (x^4 + 1) ( x^8 + 1)
= [ ( x² )² - 1² ] ( x^4 + 1) ( x^8 + 1)
=( x² - 1²) ( x² + 1) ( x^4 + 1) ( x^8 + 1)
= ( x- 1) ( x+ 1) ( x² + 1 ) ( x^4 + 1) (x^8 + 1)
Chuc ban hoc tot.