Question

Решите уравнение
$frac{}{}( frac{2}{3} ) ^{x} * (frac{9}{8}) ^{x} = frac{27}{64}$

Answer 1

$( frac{2}{3} ) ^{x} * (frac{9}{8}) ^{x} = frac{27}{64}$
$( frac{2*9}{3*8} ) ^{x} = frac{3^3}{4^3}$
$( frac{3}{4} ) ^{x} = (frac{3}{4})^3$
x=3