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    (Original post by KloppOClock)
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    Why am I tagged and what the hell am I looking at? What's wrong?
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    (Original post by RDKGames)
    Why am I tagged and what the hell am I looking at? What's wrong?
    i tagged you cuz ur smart and the question is the picture
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    (Original post by RDKGames)
    Why am I tagged and what the hell am I looking at? What's wrong?
    question is how to do it without using the change of base rule
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    (Original post by KloppOClock)
    question is how to do it without using the change of base rule
    Not that I see. That rule is there for a reason, so use it, it isn't much.
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    (Original post by RDKGames)
    Not that I see. That rule is there for a reason, so use it, it isn't much.
    but the specification literally says they dont set questions based upon the change of base rule (the bit that i outlined it red) so i must be doing this wrong
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    (Original post by KloppOClock)
    but the specification literally says they dont set questions based upon the change of base rule (the bit that i outlined it red) so i must be doing this wrong
    Then the only other thing I can think of is using your knowledge from FP1 concerning roots of quadratics and applying it to this scenario.
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    5=2 to the x and 3 =2 to the x
    Log 5 / log 2 = x and log 3 / log 2 = x

    And them like you would normally fractions to get the answer then apply log ab = log a + log b
 
 
 
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