Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=3^5$, $a^m=3^{15}$, $a=3$, $a^m/a^n=\frac{3^{15}}{3^5\cdot 3^7}$, $m=15$ e $n=5$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=3^7$, $a^m=3^{10}$, $a=3$, $a^m/a^n=\frac{3^{10}}{3^7}$, $m=10$ e $n=7$

Applicare la formula: $a^b$$=a^b$, dove $a=3$, $b=3$ e $a^b=3^{3}$