Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=x^4$, $a^m=x^{10}$, $a=x$, $a^m/a^n=\frac{-42x^{10}}{14x^4}$, $m=10$ e $n=4$

Applicare la formula: $\frac{ab}{c}$$=\frac{a}{c}b$, dove $ab=-42x^{6}$, $a=-42$, $b=x^{6}$, $c=14$ e $ab/c=\frac{-42x^{6}}{14}$