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

Applicare la formula: $a^b$$=a^b$, dove $a=-4$, $b=2$ e $a^b={\left(-4\right)}^{2}$