Applicare la formula: $a+b$$=\left(\sqrt[3]{a}+\sqrt[3]{\left|b\right|}\right)\left(\sqrt[3]{a^{2}}-\sqrt[3]{a}\sqrt[3]{\left|b\right|}+\sqrt[3]{\left|b\right|^{2}}\right)$, dove $a=a^3$ e $b=\left(\frac{1}{a}\right)^3$

Applicare la formula: $a+\frac{b}{c}$$=\frac{b+ac}{c}$, dove $b=1$, $c=a$, $a+b/c=a+\frac{1}{a}$ e $b/c=\frac{1}{a}$

Applicare la formula: $a\frac{b}{x}$$=\frac{ab}{x}$

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