Question

(0,1c-1/3z)*(3c+6z)=

Answer 1

4ччч................................................

Answer 2

Это будет:
(0,1с - 1 /3z ) *( 3c + 6z)=0,3с^2+0,6сz-cz-2z^2= 0,3с^2-0,4сz-2z^2

Answer 3

(0,1c-1/3z)*(3c+6z)= (0,1c-1/3z)*(3c+6z)=
(3c2-20z2-4zc)/10