Question

o valor de x q satisfas a equacao 27*=1sobre 243 . ..

Answer 1

$27^x=\frac{1}{243}\\ \\ (3^3)^x=\frac{1}{3^{5}}\\ \\ 3^{3x}=3^{-5}\\ \\ 3x=-5\\ \\ \boxed{x=-\frac{5}{3}}$