Answer:
-10m^4-2m^3-7m^2.
Step-by-step explanation:
[tex]\frac{-20m^9-4m^8-14m^7}{2m^5} = \frac{-2m^7(10m^2+2m+7)}{2m^5}[/tex]
[tex]= -m^2(10m^2+2m+7) = -10m^4-2m^3-7m^2[/tex].