Applicare la formula: $\left(ab\right)^n$$=a^nb^n$

Applicare la formula: $x^mx^n$$=x^{\left(m+n\right)}$, dove $x=a$, $m=-2$ e $n=-20$

Applicare la formula: $x^mx^n$$=x^{\left(m+n\right)}$, dove $x=b$, $m=5$ e $n=-8$

Applicare la formula: $x^a$$=\frac{1}{x^{\left|a\right|}}$

Applicare la formula: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, dove $a=80$, $b=a^{22}$, $c=1$, $a/b=\frac{80}{a^{22}}$, $f=b^{3}$, $c/f=\frac{1}{b^{3}}$ e $a/bc/f=\frac{80}{a^{22}}\frac{1}{b^{3}}$