Applicare la formula: $\frac{a}{a}$$=1$, dove $a=x^2$ e $a/a=\frac{42x^2y^3z^5}{3x^2yz^2}$

Applicare la formula: $\frac{a^n}{a}$$=a^{\left(n-1\right)}$, dove $a^n/a=\frac{42y^3z^5}{3yz^2}$, $a^n=y^3$, $a=y$ e $n=3$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=z^2$, $a^m=z^5$, $a=z$, $a^m/a^n=\frac{42y^{2}z^5}{3z^2}$, $m=5$ e $n=2$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=42y^{2}z^{3}$, $a=42$, $b=y^{2}z^{3}$, $c=3$ e $ab/c=\frac{42y^{2}z^{3}}{3}$