Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=x^{20}$, $a^m=x^{25}$, $a=x$, $a^m/a^n=\frac{243x^{25}y^{15}}{36x^{20}y^{14}}$, $m=25$ e $n=20$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=y^{14}$, $a^m=y^{15}$, $a=y$, $a^m/a^n=\frac{243x^{5}y^{15}}{36y^{14}}$, $m=15$ e $n=14$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=243x^{5}y$, $a=243$, $b=x^{5}y$, $c=36$ e $ab/c=\frac{243x^{5}y}{36}$