Răspuns:
Coeficientul este # = (D ^ 3-4d ^ 2-8d-15) #
Explicaţie:
Să facem divizia lungă
# D-2 ##color (alb) (aaaa) ##|## D ^ 4-6d ^ 3 + 0min ^ 2 + d + 17 ##color (alb) (aa) ##|## D ^ 3-4d ^ 2-8d-15 #
#color (alb) (aaaaaaaaaa) ## D ^ 4-2d ^ 3 #
#color (alb) (aaaaaaaaaaa) ## 0-4d ^ 3 + 0min ^ 2 #
#color (alb) (aaaaaaaaaaaaa) ## -4d ^ 3 + 8d ^ 2 #
#color (alb) (aaaaaaaaaaaaaa) ## -0-8d ^ 2 + d #
#color (alb) (aaaaaaaaaaaaaaaaa) ## -8d ^ 2 + 16d #
#color (alb) (aaaaaaaaaaaaaaaaaaa) ## -0-15d + 17 #
#color (alb) (aaaaaaaaaaaaaaaaaaaaaaa) ## -15d + 30 #
#color (alb) (aaaaaaaaaaaaaaaaaaaaaaaaa) ##-0-13#
Prin urmare, # (D ^ 4-6d ^ 3 + d + 17) / (d-2) = d ^ 3-4d ^ 2-8d-15-13 / (-d 2) #
Restul este #=-13# iar coeficientul este # = (D ^ 3-4d ^ 2-8d-15) #