Сократите дробь:
а) $\frac{z^8t^4w^{20}}{zt^3w}$;
б) $\frac{-m^{15}n^4r^8}{m^{19}n^{21}r^6}$;
в) $\frac{a^{12}x^{19}z^5}{-a^{40}x^{31}z^6}$;
г) $\frac{-b^{100}y^5z}{-b^{101}y^3z^4}$.
$\frac{z^8t^4w^{20}}{zt^3w} = \frac{z^8}{z} * \frac{t^4}{t^3} * \frac{w^{20}}{w} = z^7t^3w^{19}$
$\frac{-m^{15}n^4r^8}{m^{19}n^{21}r^6} = -\frac{m^{15}}{m^{19}} * \frac{n^4}{n^{21}} * \frac{r^8}{r^6} = -\frac{r^2}{m^{4}n^{17}}$
$\frac{a^{12}x^{19}z^5}{-a^{40}x^{31}z^6} = -\frac{a^{12}}{a^{40}} * \frac{x^{19}}{x^{31}} * \frac{z^5}{z^6} = -\frac{1}{a^{28}x^{12}z}$
$\frac{-b^{100}y^5z}{-b^{101}y^3z^4} = \frac{b^{100}}{b^{101}} * \frac{y^5}{y^3} * \frac{z}{z^4} = \frac{y^2}{bz^3}$
Пожауйста, оцените решение
