Chapter 7 - Exponents and Exponential Functions - Chapter Review - 7-3 and 7-4 Multiplication Properties of Exponents - Page 465: 37

$243/16*x^3*y^{11}$

$(12x^2*y^{-2})^5*(4xy^{-3})^{-7}$ $(12x^2)^5*(y^{-2})^5*4^{-7}*x^{-7}*(y^{-3})^{-7}$ $12^5*x^{10}*y^{-10}*4^{-7}*x^{-7}*y^{21}$ $3^5*4^5*4^{-7}*x^{10-7}*y^{-10+21}$ $3^5*4^{5-7}*x^3*y^{11}$ $243*4^{-2}*x^3*y^{11}$ $243/16*x^3*y^{11}$