To express \((2x^3y)^3\) in exponent form, we need to apply the power of a product rule, which states that \((ab)^n = a^n b^n\), as well as the power of a power rule, which states that \((a^m)^n = a^{mn}\).
- Start with \((2x^3y)^3\).
- Apply the power of a product rule:
- \((2)^3\) gives \(8\),
- \((x^3)^3\) gives \(x^{3 \cdot 3} = x^9\),
- \((y)^3\) gives \(y^3\).
Putting it all together, we have:
\[ (2x^3y)^3 = 8x^9y^3 \]
Therefore, the answer is:
8x⁹y³