Given below are two statements:
Statement-I: There were sections of Soviet society which felt that Gorbachev should have moved much faster and were disappointed and impatient with his methods.
Statement-II: Communist Party and those who were served by the system felt that their power and privileges were eroding and Gorbachev was moving too quickly.
A carpenter needs to make a wooden cuboidal box, closed from all sides, which has a square base and fixed volume. Since he is short of the paint required to paint the box on completion, he wants the surface area to be minimum.
On the basis of the above information, answer the following questions :
Find \( \frac{dS}{dx} \).
