Question

Se 10^2x=25,então 10^-x é igual a?

Answer 1

(10^x)² = 25
(10^x) = \/25
(10^x) = 5
10^-x = 1/10^x = 1/5

Answer 2

$10^{2x}=25\\ (10^x)^2=25\\ 10^x=\sqrt25\\ 10^x=5\\ \\ \\ 10^{-x} = \frac{1}{5} \\\\ inverso$