Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=x^{-3}$, $a^m=x^{11}$, $a=x$, $a^m/a^n=\frac{x^{11}y^{10}}{x^{-3}y^{-1}}$, $m=11$ e $n=-3$

Applicare la formula: $\frac{a^m}{a^n}$$=a^{\left(m-n\right)}$, dove $a^n=y^{-1}$, $a^m=y^{10}$, $a=y$, $a^m/a^n=\frac{x^{14}y^{10}}{y^{-1}}$, $m=10$ e $n=-1$

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

Applicare la formula: $a+b$$=a+b$, dove $a=10$, $b=1$ e $a+b=10+1$