Applicare la formula: $ab$$=ab$, dove $ab=3\cdot 12xy^3x^3$, $a=3$ e $b=12$

Applicare la formula: $\frac{a^n}{a}$$=a^{\left(n-1\right)}$, dove $a^n/a=\frac{36x^{4}y^3}{-4x^2y}$, $a^n=y^3$, $a=y$ e $n=3$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=x^2$, $a^m=x^{4}$, $a=x$, $a^m/a^n=\frac{36x^{4}y^{2}}{-4x^2}$, $m=4$ e $n=2$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=36x^{2}y^{2}$, $a=36$, $b=x^{2}y^{2}$, $c=-4$ e $ab/c=\frac{36x^{2}y^{2}}{-4}$