Problem
Identify the radicand. \[ 4 \sqrt{p^{2}+9} \] The radicand is $\square$.
Solution
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 \(\boxed{p^{2}+9}\).
