Applicare la formula: $\left(a+b\right)^3$$=a^3+3a^2b+3ab^2+b^3$, dove $a=\frac{3}{2}d$, $b=\frac{4}{3}c$ e $a+b=\frac{3}{2}d+\frac{4}{3}c$

Applicare la formula: $\left(ab\right)^n$$=a^nb^n$

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=9$, $b=4$, $c=4$, $a/b=\frac{9}{4}$ e $ca/b=4\cdot \left(\frac{9}{4}\right)d^2c$

Applicare la formula: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, dove $a=9$, $b=2$, $c=16$, $a/b=\frac{9}{2}$, $f=9$, $c/f=\frac{16}{9}$ e $a/bc/f=\frac{9}{2}\cdot \frac{16}{9}dc^2$