To solve the equation \( 36x^2 = 0 \), we can start by dividing both sides by 36, which gives us:
\[ x^2 = 0 \]
Taking the square root of both sides, we find:
\[ x = 0 \]
Thus, the only solution to the equation is \( x = 0 \). In set notation, we express the solution set as:
\[ { 0 } \]
So the correct response is:
\({0}\)