Question

8 класс
Пж помогите сделать! Умоляюю !

Answer 1

$1)\frac{27^{4} }{9^{5}}=\frac{(3^{3})^{4}}{(3^{2})^{5}}=\frac{3^{12}}{3^{10}}=3^{12-10}=3^{2}=9\\\\2)\frac{32^{3}*8^{2}}{16^{5}}=\frac{(2^{5})^{3}*(2^{3})^{2}}{(2^{4})^{5}}=\frac{2^{15}*2^{6}}{2^{20}}=2^{15+6-20}=2$

$3)\frac{3^{10}*7^{10}}{21^{8}}=\frac{(3*7)^{10} }{21^{8}}=\frac{21^{10}}{21^{8}}=21^{10-8}=21^{2}=441\\\\4)\frac{20^{10}}{5^{10}*4^{10}}=\frac{20^{10}}{(5*4)^{10}}=\frac{20^{10}}{20^{10}}=1$