Applicare la formula: $\frac{a^n}{a}$$=a^{\left(n-1\right)}$, dove $a^n/a=\frac{10x^4y^8}{22x^2y}$, $a^n=y^8$, $a=y$ e $n=8$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=x^2$, $a^m=x^4$, $a=x$, $a^m/a^n=\frac{10x^4y^{7}}{22x^2}$, $m=4$ e $n=2$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=10x^{2}y^{7}$, $a=10$, $b=x^{2}y^{7}$, $c=22$ e $ab/c=\frac{10x^{2}y^{7}}{22}$