Question

$( frac{2,1a^nx^2}{3y^3})^3$

Answer 1

$( frac{2.1a^n x^{2} }{3y^3})^3=( frac{0.7a^n x^{2} }{y^3})^3= frac{0.343*a^{3n}*x^6}{y^9}$