Answer :

To solve the expression [tex]\(\sqrt[3]{3^3 x^3 y^{15}}\)[/tex], we will simplify it step-by-step by applying the cube root to each term.

1. Identify the expression inside the cube root:
[tex]\[ \sqrt[3]{3^3 x^3 y^{15}} \][/tex]

2. Separate the expression into distinct parts:
[tex]\[ \sqrt[3]{3^3 \cdot x^3 \cdot y^{15}} \][/tex]

3. Apply the cube root to each part individually:
- For [tex]\(3^3\)[/tex]:
[tex]\[ \sqrt[3]{3^3} \Rightarrow 3 \][/tex]

- For [tex]\(x^3\)[/tex]:
[tex]\[ \sqrt[3]{x^3} \Rightarrow x \][/tex]

- For [tex]\(y^{15}\)[/tex]:
[tex]\[ \sqrt[3]{y^{15}} = y^{15/3} \Rightarrow y^5 \][/tex]

4. Combine the simplified terms:
[tex]\[ 3 \cdot x \cdot y^5 = 3xy^5 \][/tex]

So, the simplified form of [tex]\(\sqrt[3]{3^3 x^3 y^{15}}\)[/tex] is:
[tex]\[ 3xy^5 \][/tex]

Thus, the final answer is:
[tex]\[ \boxed{3xy^5} \][/tex]