Let's simplify the expression step by step:
- Start with the expression:
\[ \sqrt{-25} + 2i + 5i + (9 - \sqrt{36}) \]
- Simplify \(\sqrt{-25}\):
\[ \sqrt{-25} = 5i \]
- Simplify \(\sqrt{36}\):
\[ \sqrt{36} = 6 \]
- Substitute these values back into the expression:
\[ 5i + 2i + 5i + (9 - 6) \]
- Combine the \(i\) terms:
\[ (5i + 2i + 5i) = 12i \]
- Finally, simplify the constant terms:
\[ 9 - 6 = 3 \]
So, the expression becomes:
\[ 3 + 12i \]
The final result is:
\[ \boxed{3 + 12i} \]