Question

quanto e log de1\8 na base de 1\4

Answer 1

$2^{-2x} = 2^{-3 }$
-2x = -3
x = 3/2

Answer 2

log 1\8  =  x    1\4

(2^-2)^x = 2^-3 ==> -2x = -3(-1) ==> 2x = 3 ==. x = 3/2