We perform a synthetic division
color(white)(aaaa)aaaa33color(white)(aaaa)aaaa|∣color(white)(aaaa)aaaa11color(white)(aaaa)aaaa-13−13color(white)(aaaaaaa)aaaaaaa2424color(white)(aaaaaa)aaaaaa1818color(white)(aaaaaa)aaaaaa
color(white)(aaaaaa)aaaaaacolor(white)(aaa)aaa|∣color(white)(aaa)aaacolor(white)(aaaaaaaaa)aaaaaaaaa33color(white)(aaaaa)aaaaa-30−30color(white)(aaaa)aaaa-18−18color(white)(aaaaaa)aaaaaa
color(white)(aaaaaaaaaa)aaaaaaaaaa------------------------------------------------------------
color(white)(aaaa)color(white)(aaaaaa)color(white)(aaaaaa)1color(white)(aaaa)-10aaaaaaaaaaaaaaaa1aaaa−10color(white)(aaaaa)-6color(white)(aaaaa)color(white)(aa)color(red)(0)aaaaa−6aaaaaaa0
The remainder is =0=0
The quotient is =m^2-10m-6=m2−10m−6