What is the value of $\sqrt{3^3 + 3^3 + 3^3}$?
This problem involves some powers of 3 and a square root. I wonder if I can simplify the expression inside the square root somehow. I notice that $3^3 + 3^3 + 3^3 = 3 \cdot 3^3 = 3^4$, so I can rewrite the expression as $\sqrt{3^4}$. Now I can use the property that $\sqrt{a^b} = a^{b/2}$ for any positive numbers $a$ and $b$. In this case, $a = 3$ and $b = 4$, so I get $\sqrt{3^4} = 3^{4/2} = 3^2$. This is much easier to evaluate: $3^2 = 9$. 