Applicare la formula: $\frac{a^n}{a}$$=a^{\left(n-1\right)}$, dove $a^n/a=\frac{x^3y\sqrt{zxy}}{xz^2y^2}$, $a^n=x^3$, $a=x$ e $n=3$

Applicare la formula: $\frac{a}{a^n}$$=\frac{1}{a^{\left(n-1\right)}}$, dove $a=y$ e $n=2$

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

Applicare la formula: $\frac{a^n}{a}$$=a^{\left(n-1\right)}$, dove $a^n/a=\frac{x^{2}\sqrt{zx}\sqrt{y}}{z^2y}$, $a^n=\sqrt{y}$, $a=y$ e $n=\frac{1}{2}$

Applicare la formula: $\frac{x^a}{b}$$=\frac{1}{bx^{-a}}$, dove $a=-\frac{1}{2}$, $b=z^2$ e $x=y$