Question 313426
{{{ sqrt(80n^3)/ sqrt(2)= sqrt(80n^3/2)}}}  
{{{ sqrt(80n^3)/ sqrt(2)= sqrt(40n^3)}}}
{{{ sqrt(80n^3)/ sqrt(2)= sqrt(4*10*n^2*n)}}}  
{{{ sqrt(80n^3)/ sqrt(2)= sqrt(4n^2)sqrt(10n)}}} 
{{{ sqrt(80n^3)/ sqrt(2)= 2n*sqrt(10n)}}}