Applicare la formula: $\left(a+b\right)\left(a+c\right)$$=a^2-b^2$, dove $a=\frac{1}{2}m$, $b=\frac{3}{8}-n^2$, $c=-\frac{3}{8}-n^2$, $a+c=\frac{1}{2}m+\frac{3}{8}-n^2$ e $a+b=\frac{1}{2}m-\frac{3}{8}-n^2$

Applicare la formula: $\left(ab\right)^n$$=a^nb^n$

Applicare la formula: $\left(a+b\right)^2$$=a^2+2ab+b^2$, dove $a=\frac{3}{8}$, $b=-n^2$ e $a+b=\frac{3}{8}-n^2$

Applicare la formula: $-\left(a+b\right)$$=-a-b$, dove $a=\frac{9}{64}$, $b=-\frac{3}{4}n^2+n^{4}$, $-1.0=-1$ e $a+b=\frac{9}{64}-\frac{3}{4}n^2+n^{4}$

Applicare la formula: $-\left(a+b\right)$$=-a-b$, dove $a=-\frac{3}{4}n^2$, $b=n^{4}$, $-1.0=-1$ e $a+b=-\frac{3}{4}n^2+n^{4}$