Question

log 4 na base 1/8 pelo amor de deus me ajuda

Answer 1

(1/8)^x=4
(1/8)^x=2^2
(1/2^3)^x=2^2
((2^3)^-1)^x=2^2
(2^-3)^x=2^2
2^-3x=2^2
Corta as bases
-3x=2
x=-2/3