fema4yll1utaramoray
fema4yll1utaramoray fema4yll1utaramoray
  • 07-07-2016
  • Mathematics
contestada

What is the solution of log2x − 4 16 = 4?

x = −3

x = 3

x = −2

x = 2

Respuesta :

jhonyy9
jhonyy9 jhonyy9
  • 11-07-2016
using the property of logarithms log(a)b = x => a^x = b so we get 

(2x-4)^4 = 16 

(2x-4)^4 = 2^4    because the exponents are equal so this equation will be right than the bases will be equals too so than 

2x -4 = 2

2x = 6

x = 6/2 = 3 

x = 3 

hope this will help you 


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