Results 1 to 4 of 4

Math Help - Logs

  1. #1
    Junior Member
    Joined
    Oct 2008
    Posts
    60

    Logs

    I am having the hardest time figuring these out. The problem I am on is log(subscript 4)192-log(subscript4)3. I know that the property is division, I'm just not exactly sure how to get the answer? I ended up with 193/3, then 63, but this makes no sense. Just need step by step help to see how this is done?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,605
    Thanks
    1574
    Awards
    1
    Quote Originally Posted by Chinnie15 View Post
    I am having the hardest time figuring these out. The problem I am on is log(subscript 4)192-log(subscript4)3. I know that the property is division, I'm just not exactly sure how to get the answer? I ended up with 193/3, then 63, but this makes no sense. Just need step by step help to see how this is done?
    \log _4 (192) - \log _4 (3) = \log _4 \left( {\frac{{192}}{3}} \right) = \log _4 (64) = 3.
    Because 4^3=64
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Oct 2008
    Posts
    60
    Thanks! That means I almost got it! And the 63 in the first post was a typo, I just didn't know what to do with the 64.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor

    Joined
    Apr 2005
    Posts
    15,368
    Thanks
    1313
    Quote Originally Posted by Chinnie15 View Post
    Thanks! That means I almost got it! And the 63 in the first post was a typo, I just didn't know what to do with the 64.
    You should have recognized that 64= 4(16)= 4(4)(4)= 4^3.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 9
    Last Post: February 22nd 2011, 05:39 PM
  2. Logs
    Posted in the Algebra Forum
    Replies: 4
    Last Post: April 24th 2010, 07:52 AM
  3. Logs
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: October 10th 2009, 06:08 PM
  4. Dealing with Logs and Natural Logs
    Posted in the Advanced Algebra Forum
    Replies: 0
    Last Post: April 14th 2008, 06:18 AM
  5. several questions-logs/natural logs
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: November 12th 2007, 08:58 PM

Search Tags


/mathhelpforum @mathhelpforum