Respuesta :

the answer would be 7m5-3m3-3 

6m^5 + 3 - m³ -4m + m^5 -2m³ +4m -6

Combine like terms

(6m^5 +m^5)+(-m³-2m³)+(-4m+4m)+(3-6)

= 7m^5 -3m³ -3


I hope that's help:)