Applicare la formula: $\frac{a^n}{a}$$=a^{\left(n-1\right)}$, dove $a^n/a=\frac{12x^4y^3}{4xy^2}$, $a^n=x^4$, $a=x$ e $n=4$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=y^2$, $a^m=y^3$, $a=y$, $a^m/a^n=\frac{12x^{3}y^3}{4y^2}$, $m=3$ e $n=2$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=12x^{3}y$, $a=12$, $b=x^{3}y$, $c=4$ e $ab/c=\frac{12x^{3}y}{4}$