Identify the radicand.
\[
4 \sqrt{p^{2}+9}
\]
The radicand is $\square$.
Final Answer: The radicand is \(\boxed{p^{2}+9}\).
Step 1 :Identify the radicand in \(4 \sqrt{p^{2}+9}\).
Step 2 :The radicand is \(p^{2}+9\).
Step 3 :Final Answer: The radicand is \(\boxed{p^{2}+9}\).