Question

-15c×4×(-3d)=
7m×(-8)×5n=
5m×(-6)×(-20n)=
125m×7×(-8n)=

Answer 1

-15c*4(-3d)=-15c*(-12d)=180cd
7m(-8)*5n=-56m*5n=-280mn
5m(-6)*(-20n)=-30m*(-20n)=600mn
125m*7(-8n)=125m*(-56n)=-7000mn