Wenden Sie die Formel an: $\left(a+b\right)^3$$=a^3+3a^2b+3ab^2+b^3$, wobei $a=x^2$, $b=-b^2$ und $a+b=x^2-b^2$

Simplify $\left(b^2\right)^2$ 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 $\left(b^2\right)^3$ 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 $3$