Applicare la formula: $\frac{d}{dx}\left(\frac{x}{c}\right)$$=\frac{1}{c}\frac{d}{dx}\left(x\right)$, dove $c=5$ e $x=x^3$

Applicare la formula: $\frac{d}{dx}\left(x^a\right)$$=ax^{\left(a-1\right)}$, dove $a=3$

Applicare la formula: $a+b$$=a+b$, dove $a=3$, $b=-1$ e $a+b=3-1$

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=1$, $b=5$, $c=3$, $a/b=\frac{1}{5}$ e $ca/b=3\left(\frac{1}{5}\right)x^{2}$

Applicare la formula: $ab$$=ab$, dove $ab=3\cdot 1$, $a=3$ e $b=1$