Question

помогите
log1/3 (2-4x)=-2

Answer 1

log₁/₃(2-4x)=-2
2-4x=(1/3)⁻²
2-4x=9
4x=-7
x=-7/4
проверка: log₁/₃(2-4*(-7/4))=-2
log₁/₃(2+7)=-2
-2=-2
ответ: х=-7/4