Answer:
![-108x^(5)y^(7)](https://img.qammunity.org/2022/formulas/mathematics/high-school/28otc83q7c5dtzd4fao7vyklewxtu1cbia.png)
Explanation:
Simplify using the laws of exponents (there are more rules than listed, these given rules are just the ones that come into play here);
- when there is a term in parenthesis with an exponent outside, the term's exponent gets multiplied by the exponent outside
- when multiplying two exponents, one can only combine terms with the same base, and one must add the exponents
![(3xy^(2))^(3)*(-4x^(3)y)\\\\=(3^(3)*x^(3)*y^{2{^(3)}}) *(-4x^(2)y)\\\\=(27x^(3)y^(6))(-4x^(2)y)\\\\=-108x^(5)y^(7)](https://img.qammunity.org/2022/formulas/mathematics/high-school/ylax2ggj79gy7mbp48obflkfzefxxnu5fr.png)