Applicare la formula: $\frac{a}{a}$$=1$, dove $a=a^2$ e $a/a=\frac{12a^2b^5c^4}{-6a^2b^3c^2}$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=b^3$, $a^m=b^5$, $a=b$, $a^m/a^n=\frac{12b^5c^4}{-6b^3c^2}$, $m=5$ e $n=3$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=c^2$, $a^m=c^4$, $a=c$, $a^m/a^n=\frac{12b^{2}c^4}{-6c^2}$, $m=4$ e $n=2$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=12b^{2}c^{2}$, $a=12$, $b=b^{2}c^{2}$, $c=-6$ e $ab/c=\frac{12b^{2}c^{2}}{-6}$