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Thread: 2 mini questions..any help?

  1. #1
    New Member
    Join Date
    Feb 2012
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    Red face 2 mini questions..any help?

    I have two fairly simple problems, and I know I could probably find the answers somewhere online, but I also want to understand the steps so I can complete future problems like these myself..If you know what you're doing please give me the steps and the answer would help too

    Solve:
    1.6^(4x)=102
    2.log[base3]+log(4x-1)=5

    Any help would be greatly appreciated!

  2. #2
    Senior Member
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    Nov 2004
    Location
    Seattle
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    1,390
    I have two fairly simple problems, and I know I could probably find the answers somewhere online, but I also want to understand the steps so I can complete future problems like these myself..If you know what you're doing please give me the steps and the answer would help too

    Solve:
    1.6^(4x)=102
    2.log[base3]+log(4x-1)=5
    For the first problem, start by taking the logarithm of both sides:

    log [1.6^(4x)] = log (102)

    Now, for both problems (although problem 2 seems to be missing something...), check out these two web pages to learn how to manipulate logarithms; they have great examples and explanations:

    http://www.purplemath.com/modules/logs.htm

    http://www.purplemath.com/modules/logs2.htm

    Try applying this to these problems and show us how you're doing.

  3. #3
    Elite Member
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    Feb 2004
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    Ottawa, Ontario
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    12,206
    I'm just an imagination of your figment !

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