Applicare la formula: $x^a=b$$\to \left(x^a\right)^{inverse\left(a\right)}=b^{inverse\left(a\right)}$, dove $a=2$, $b=0$, $x^a=b=\left(a-9b\right)^2=0$, $x=a-9b$ e $x^a=\left(a-9b\right)^2$

Applicare la formula: $\left(x^a\right)^b$$=x$, dove $a=2$, $b=1$, $x^a^b=\sqrt{\left(a-9b\right)^2}$, $x=a-9b$ e $x^a=\left(a-9b\right)^2$

Applicare la formula: $a^b$$=a^b$, dove $a=0$, $b=\frac{1}{2}$ e $a^b=\sqrt{0}$

Applicare la formula: $x+a=b$$\to x=b-a$, dove $a=-9b$, $b=0$, $x+a=b=a-9b=0$, $x=a$ e $x+a=a-9b$