Savannahnicholerowe Savannahnicholerowe
  • 23-01-2018
  • Mathematics
contestada

Which of the following shows the true solution to the logarithmic equation 3log2(2x)=3

Respuesta :

HenryLCH
HenryLCH HenryLCH
  • 23-01-2018
3log2(2x)=3
log(2(2x))^3=log1000
8(8x^3)=1000
x=2.5
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lisboa lisboa
  • 28-05-2019

Answer:

x=1

Step-by-step explanation:

[tex]3log_2(2x)= 3[/tex]

We need to solve for x

First we divide both sides by 3

[tex] log_2(2x)= 1[/tex]

We convert log form into exponential form

If [tex]log_b(x)= a[/tex] then b^a = x

[tex] log_2(2x)= 1[/tex]

2^1 = 2x

2=2x

divide by 2 on both sides

x=1

we need to verify our solution

[tex]3log_2(2x)= 3[/tex]

[tex]3log_2(2(1))= 3[/tex]

3=3 --> true, so x=1 is our solution

Answer Link

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