Applicare la formula: $\left(a+b\right)^4$$=a^4+4a^3b+6a^2b^2+4ab^3+b^4$, dove $a=\frac{2}{3}a^x$, $b=-\frac{3}{2}$ e $a+b=\frac{2}{3}a^x-\frac{3}{2}$

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

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=8$, $b=27$, $c=-6$, $a/b=\frac{8}{27}$ e $ca/b=-6\cdot \left(\frac{8}{27}\right)a^{3x}$

Applicare la formula: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, dove $a=27$, $b=2$, $c=4$, $a/b=\frac{27}{2}$, $f=9$, $c/f=\frac{4}{9}$ e $a/bc/f=\frac{27}{2}\cdot \frac{4}{9}a^{2x}$

Applicare la formula: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, dove $a=8$, $b=3$, $c=-27$, $a/b=\frac{8}{3}$, $f=8$, $c/f=-\frac{27}{8}$ e $a/bc/f=\frac{8}{3}\cdot -\frac{27}{8}a^x$