−4m^4+3m^3−19m^2−6 (this is just the simplified version of the equation if you want a more specific answer provide which expressions are you talking about
Step-by-step explanation:
Given (-7m^4+15m^3-12m^2)+(3m^5-12m^4-7m^3)/m-6; we combine the two equations and get −4m^4+3m^3−19m^2−6
