Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}\frac{radicalfactor\left(b\right)}{radicalfactor\left(b\right)}$, dove $a=b$ e $b=3\sqrt{d}$

Applicare la formula: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, dove $a=b$, $b=3\sqrt{d}$, $c=\sqrt{d}$, $a/b=\frac{b}{3\sqrt{d}}$, $f=\sqrt{d}$, $c/f=\frac{\sqrt{d}}{\sqrt{d}}$ e $a/bc/f=\frac{b}{3\sqrt{d}}\frac{\sqrt{d}}{\sqrt{d}}$

Applicare la formula: $x\cdot x$$=x^2$, dove $x=\sqrt{d}$

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