Posted by Pamela on .
Let x = log_2 1/8
Write the exponential form of the equation and solve the equation for x.
Does this work? Thanks!
Exponential form is 2^3=1/8
To Check:
2^3=1/2^3=1/8

Algebra Help 
MathMate,
Please continue with post below, you are almost there!
http://www.jiskha.com/display.cgi?id=1249473232 
Algebra Help 
Pamela,
x = log_ 2 2^3
? I am lost now. I really thought I had it from what I just posted.
Exponential form is 2^3 = 1/8 This isn't correct?
To Check:
2^3=1/2^3=1/8 
Algebra Help 
MathMate,
Exponential form is 2^3 = 1/8 This isn't correct?
This part is correct, that's the "so far so good" part. Sorry if there was a misunderstanding.
You also need to do the second part: " and solve the equation for x."
You are very close to finishing, keep it up. 
Algebra Help 
Pamela,
Solve for x i got, the exponential is the problem for me...Here is what i got for x.
To Solve:
1/8=8^1
8=2^3
1/8=2^3^1=8^1
=2^3
Log_2 1/8 = log_2 2^3
=3log_2 2
x =3
To Check:
2^x=1/8= 2^3
x=3 
Algebra Help 
MathMate,
Correct!

Algebra Help 
Pamela,
Now what about the Exponential form
?
2^3 = 1/8 This isn't correct? If not then how do i show Let x = log_2 1/8 in exponential form? 
Algebra Help 
MathMate,
"Algebra Help  MathMate, Wednesday, August 5, 2009 at 6:41pm
Exponential form is 2^3 = 1/8 This isn't correct?
This part is correct, that's the "so far so good" part. Sorry if there was a misunderstanding. "
The exponential form has to be correct for you to proceed with the second part, otherwise the second part will not be correct. 
Algebra Help 
Pamela,
Thank you this really helps! So I got
Exponential form is 2^3 = 1/8
and To solve x = 3 So this is all of it? 
Algebra Help 
MathMate,
That's all there is to it.
If you have time, read up and understand of the identities listed earlier. You'll be glad you did when exam comes around. 
Algebra Help 
Pamela,
Thanks! You have been a BIG help! I will do that!

Algebra Help 
MathMate,
It's been a pleasure!