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

Applicare la formula: $a^b$$=a^b$, dove $a=\frac{2}{9}$, $b=2$ e $a^b=\left(\frac{2}{9}\right)^2$

Applicare la formula: $\left(x^a\right)^b$$=x^{ab}$, dove $a=x$, $b=2$, $x^a^b=\left(m^x\right)^2$, $x=m$ e $x^a=m^x$

Applicare la formula: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, dove $a=4$, $b=9$, $c=-3$, $a/b=\frac{4}{9}$, $f=7$, $c/f=-\frac{3}{7}$ e $a/bc/f=\frac{4}{9}\cdot -\frac{3}{7}m^xn^{\left(x+1\right)}$