To solve the equation \( 36x^2 = 0 \), we first divide both sides by 36, which simplifies to:
\[ x^2 = 0 \]
Taking the square root of both sides, we find:
\[ x = 0 \]
Thus, the solution set contains only the value 0. In set notation, this is represented as:
\[ {0} \]
So, the correct response is:
\({0}\)