Applicare la formula: $\frac{a^n}{a}$$=a^{\left(n-1\right)}$, dove $a^n/a=\frac{4x^3y^3}{8xy^{-5}}$, $a^n=x^3$, $a=x$ e $n=3$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=y^{-5}$, $a^m=y^3$, $a=y$, $a^m/a^n=\frac{4x^{2}y^3}{8y^{-5}}$, $m=3$ e $n=-5$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=4x^{2}y^{8}$, $a=4$, $b=x^{2}y^{8}$, $c=8$ e $ab/c=\frac{4x^{2}y^{8}}{8}$