Question

өтінім көмектесіңіздерші.10бал​

Answer 1

$3^{5}\cdot 3^{6}:3^{8}=3^{5+6-8}=3^3=27$

$9^{7}\cdot 9^{5}:9^{10}=9^{7+5-10}=9^2=81$

$3^{9}\cdot 3^{13}:3^{20}=3^{9+13-20}=3^2=9$

$3^{15}: 3^{9}:3^{5}=(3^{15}: 3^{9}):3^{5}=3^{15-9}:3^{5}=3^{6}:3^{5}=3^{6-5}=3$