Question 1043384
Let x be the length of an edge of the cube.


Area is  {{{6x^2}}}.
Volume is {{{x^3}}}.


According to description,  {{{6x^2=x^3}}}.


{{{6x^2-x^3=0}}}
{{{(6-x)x^2=0}}}
You are looking for {{{x=6}}}.