[tex]f=X^{3}+5X^{2}+X+5=X^{2}(X+5)+X+5=(X+5)(X^{2}+1)[/tex]
[tex]g=X^{2}+6X+5=X^{2}+5X+X+5=X(X+5)+X+5=(X+5)(X+1)[/tex]
[tex]\frac{f}{g}=\frac{(X+5)(X^{2}+1)}{(X+5)(X+1)}=\frac{X^{2}+1}{X+1}=\frac{X^{2}-1+2}{X+1}=\frac{(X-1)(X+1)}{X+1}+\frac{2}{X+1}=X-1+\frac{2}{X+1}[/tex] rezulta catul X-1 si restul 2.