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 


Answer Link

Otras preguntas

To be a more fluent reader, sometimes you need to
What was the japanese sphere of influence called?
Determine whether angel abc and def are similar
Simplify the expression (3x^2y^-3)^3/27(xy)^-9?
can someone help me please
what is 10/11 times 11/12
Based on the weather station symbols shown below, what is the most likely location of the low pressure system?
What are the 3 steps of Natural Selection?
Describe the current economy and labor market, including the types of goods and services produced, the types of skills workers need, the effects of rapid techno
An element X has two isotopes. X-15 has 7 protons and 8 neutrons.determine the atomic number and mass Number of the second isotope,which has 10 neutrons in its