Applicare la formula: $ax\leq b$$=x\leq \frac{b}{a}$, dove $a=-2$, $b=4$ e $x=x^2$

Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}$, dove $a=4$, $b=-2$ e $a/b=\frac{4}{-2}$

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

Applicare la formula: $a^n$$=\left(-a\right)^ni$, dove $a^n=\sqrt{-2}$, $a=-2$ e $n=\frac{1}{2}$

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