Question 356518
{{{((6z+6)/z)/((z+1)/(z^3))=((6z+6)/z)*(z^3/(z+1))}}}
{{{((6z+6)/z)/((z+1)/(z^3))=((6(z+1))/1)*(z^2/(z+1))}}}
{{{((6z+6)/z)/((z+1)/(z^3))=highlight(6z^2))}}}