Question

Решите уравнение
174. 1) x/2^3=2^2; 2) x/3^2=3^3;
3) 2^8/x=2^5; 4) 3^9/x=3^7​

Answer 1

$\displaystyle 1)\frac{x}{2^3}=2^2\\\\ \frac{x}{8}=4\\\\ x=32\\\\ 2) \frac{x}{3^2}=3^3\\\\ \frac{x}{9}=27\\\\ x=243\\\\ 3) \frac{2^8}{x}=2^5,x\neq 0\\\\ \frac{256}{x}=32\\\\ 256=32x\\32x=256\\x=8\\\\ 4) \frac{3^9}{x}=3^7,x\neq 0\\\\ \frac{19683}{x}=2187\\\\ 19683=2187x\\2187x=19683\\x=9$

Answer 2

Смотри.....................