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

Applicare la formula: $-\left(a+b\right)$$=-a-b$, dove $a=m$, $b=-2$, $-1.0=-1$ e $a+b=m-2$

Applicare la formula: $a+b$$=a+b$, dove $a=3$, $b=2$ e $a+b=m+3-m+2$

Annullare i termini come $m$ e $-m$