determine whether each x-value is a solution (or an approximate solution) of the equation. log4(3x)=3a. x≈21.333b. x=-4c. x=64/3

Respuesta :

㏒₄(3x) = 3
       4³ = 3x
      64 = 3x
       3      3
    21¹/₃ = x

The answer is A.