Applicare la formula: $x^a=b$$\to \left(x^a\right)^{inverse\left(a\right)}=b^{inverse\left(a\right)}$, dove $a=\frac{4}{3}$, $b=16$, $x^a=b=\sqrt[3]{\left(x+3\right)^{4}}=16$, $x=x+3$ e $x^a=\sqrt[3]{\left(x+3\right)^{4}}$

Applicare la formula: $\left(x^a\right)^b$$=x$, dove $a=\frac{4}{3}$, $b=3$, $x^a^b=\sqrt[4]{\left(\sqrt[3]{\left(x+3\right)^{4}}\right)^{3}}$, $x=x+3$ e $x^a=\sqrt[3]{\left(x+3\right)^{4}}$

Applicare la formula: $a^b$$=a^b$, dove $a=16$, $b=\frac{3}{4}$ e $a^b=\sqrt[4]{\left(16\right)^{3}}$

Applicare la formula: $x+a=b$$\to x+a-a=b-a$, dove $a=3$, $b=8$, $x+a=b=x+3=8$ e $x+a=x+3$