Incepem demonstrarea din partea dreapta : x^32-1=(x^16+1)(x^16-1)=(x^16+1)(x^8+1)(x^8-1)=(x^16+1)(x^8+1)(x^4+1)(x^4-1)=(x^16+1)(x^8+1)(x^4+1)(x^2+1)(x^2-1)=(x^16+1)(x^8+1)(x^4+1)(x^2+1)(x+ 1)(x-1), ctd. ne folosim de proprietatea ca:a^2-b^2=(a-b)(a+b)
