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Math Help - Maths Problems

  1. #1
    Ola
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    Maths Problems

    Hi lads I am new to the world of maths, please i needed help urgently on these questions as I have got no clue as to what is going on there. any help will gretly apprecaited.
    Thanks
    Ola
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  2. #2
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    earboth's Avatar
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    Quote Originally Posted by Ola View Post
    Hi lads I am new to the world of maths, please i needed help urgently on these questions as I have got no clue as to what is going on there. any help will gretly apprecaited.
    Thanks
    Ola
    to a)

    Re-write the RHS:

    5^{3x+1} = \dfrac{5^3 \cdot 125^4}{\sqrt{625}}=\dfrac{5^3 \cdot (5^3)^4}{(5^4)^{\frac12}} = 5^{3+12-2}

    Two powers with the same base are equal if the exponents are equal too.

    Solve for x.
    Spoiler:
    I've got x = 4
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  3. #3
    Flow Master
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    Please don't post more than three questions in a thread. Otherwise the thread can get convoluted and difficult to follow. Start new threads as necessary for remaining questions. eg. If you have five questions, post three of them in one thread and start a new thread for the remaining two etc.

    And if the question has more than two parts to it, it is best to post only that question and its parts in the thread and start a new thread for other questions.

    And please type them rather than attaching them as a word file.

    Thread closed.
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