asolano8932
asolano8932 asolano8932
  • 17-04-2018
  • Mathematics
contestada

What is the solution of log2x − 3125 = 3? (1 point)


a) x = 1/3

b) x = 1

c) x = 7/3

d) x = 4

Respuesta :

sarajevo
sarajevo sarajevo
  • 07-08-2018

We have been asked to find the solution of

[tex] {Log_{(2x-3)}}^{125}=3\\
\\
\text{we can re-write after Removing logarithm as below}\\
\\
(2x-3)^3=125\\
\\
(2x-3)^3=5^3\\
\\
\text{Now take cubed root on both the sides we get}\\
\\
2x-3=5\\
\\
\text{Add 3 on both the sides we get}\\
\\
2x=8\\
\\
\text{Divide both the sides by 2 we get}\\
\\
x=4
[/tex]

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