Applicare la formula: $\left(a+b\right)\left(a+c\right)$$=a^2-b^2$, dove $a=x$, $b=n$, $c=-n$, $a+c=x-n$ e $a+b=x+n$

Applicare la formula: $\left(a+b\right)\left(a+c\right)$$=a^2-b^2$, dove $a=x^2$, $b=n^2$, $c=-n^2$, $a+c=x^2+n^2$ e $a+b=x^2-n^2$

Simplify $\left(x^2\right)^2$ using the power of a power property: $\left(a^m\right)^n=a^{m\cdot n}$. In the expression, $m$ equals $2$ and $n$ equals $2$

Simplify $\left(n^2\right)^2$ using the power of a power property: $\left(a^m\right)^n=a^{m\cdot n}$. In the expression, $m$ equals $2$ and $n$ equals $2$