Let's perform the synthetic division
color(white)(aaaa)-6color(white)(aaaa)|color(white)(aaaa)1color(white)(aaaa)0color(white)(aaaaa)5color(white)(aaaa)-11color(white)(aaaa)-25color(white)(aaaa)29
color(white)(aaaaaaaaaaaa)_________
color(white)(aaaa)color(white)(aaaaaaa)|color(white)(aaaa)color(white)(aaa)-6color(white)(aaaa)36color(white)(aaa)-246color(white)(aaaa)1542color(white)(aa)-9102
color(white)(aaaaaaaaaaaa)________
color(white)(aaaa)color(white)(aaaaaaa)|color(white)(aaaa)1color(white)(aa)-6color(white)(aaaa)41color(white)(aaa)-257color(white)(aaaa)1517color(white)(aa)color(red)(-9073)
The remainder is =-9073 and the quotient is =p^4-6p^3+41p^2-257p+1517
(p^5+5p^3-11p^2-25p+29)/(p+6)=p^4-6p^3+41p^2-257p+1517-9073/(p+6)