Applicare la formula: $\left(ab\right)^n$$=a^nb^n$, dove $a=9$, $b=x^2$ e $n=\frac{1}{2}$

Applicare la formula: $a^b$$=a^b$, dove $a=9$, $b=\frac{1}{2}$ e $a^b=\sqrt{9}$

Applicare la formula: $\left(x^a\right)^b$$=x^{ab}$, dove $a=2$, $b=\frac{1}{2}$, $x^a^b=\sqrt{x^2}$ e $x^a=x^2$

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=1$, $b=2$, $c=2$, $a/b=\frac{1}{2}$ e $ca/b=2\cdot \left(\frac{1}{2}\right)$

Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}$, dove $a=2$, $b=2$ e $a/b=\frac{2}{2}$