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Math Help - please help with logs... 2log(base e)(x+5)=6 ??

  1. #1
    Newbie emma's Avatar
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    please help with logs... 2log(base e)(x+5)=6 ??

    can you please explain how to do these..

    1. 2log(base e)(x+5)=6 (also how do you write 'to base e' on the computer?)


    2. log(to base e)(2x +3)=0



    thanks
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  2. #2
    Flow Master
    mr fantastic's Avatar
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    Quote Originally Posted by emma View Post
    can you please explain how to do these..

    1. 2log(base e)(x+5)=6 (also how do you write 'to base e' on the computer?)


    2. log(to base e)(2x +3)=0



    thanks
    1. \log_e (x + 5) = 3 \Rightarrow e^3 = x + 5 \Rightarrow ...

    2. Note that \log_e 1 = 0 ....
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  3. #3
    Newbie emma's Avatar
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    thanks i understand more now
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