Question

помогите срочно!!!!!!

Answer 1

1)    5a^3*(-3)ab^5= -15a^4b^5

2)   7m^2*6c^3m=(7*6)*(m^2m)c^2=42*(m^2*m^1)c^3=42m^2+1c^3=42m^3c^3=42c^3m^3

4)  -8ac^5*( -2a^4)=16a^5c^5

5)   3m^2np( -5mn^2*4)=3m^2np*( -20mn^2)= -60m^3n^3p