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    (Original post by little tail chaser)
    ahh yes, the old classic:

    Me at 8:55 : Okay one more video and then i'll do some work
    me : *clicks on 6 minute long video*
    me at 9:01 : Well that's that hour ruined i guess i'll start at 10

    lather, rinse, repeat.
    i should be doing maths now lol
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    (Original post by usycool1)
    Aww, did I break your heart again? Sorry Tails, but I simply don't like you. :no:
    halp pls

    How do I
    Solve log_5(\sqrt{x^2+49})=2?
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    (Original post by Bude8)
    halp pls

    How do I
    Solve log_5(\sqrt{x^2+49})=2?
    5^2 = root(x^2+49)

    Because

    Log_a x = b
    a^b = x
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    :console: You're not the only one. I'm struggling in maths myself. If they were easy, everyone would get As in everything. Are there any areas in particular that you're struggling with? Maybe we could help? [/QUOTE]

    I know, most of my friends taking maths have said the same thing! Its veeryyy hard ive been told. Chemistry seems to be the hardest for me, and that's the problem. Everyone seems to be getting As :/ yeahh maybe we could. What do you take?
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    (Original post by Einstein786)
    I know, most of my friends taking maths have said the same thing! Its veeryyy hard ive been told. Chemistry seems to be the hardest for me, and that's the problem. Everyone seems to be getting As :/ yeahh maybe we could. What do you take?
    I do chemistry , along with bio, maths and phys. I'm on the OCR Salters board or something like that. I'll try by best to answer any questions you have
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    (Original post by Bude8)
    halp pls

    How do I
    Solve log_5(\sqrt{x^2+49})=2?
    So 5^2 = root(x^2 + 49) = root(x^2) + root(49)

    25 = x + 7

    x = 18?
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    (Original post by Little Tail Chaser)
    I do chemistry , along with bio, maths and phys. I'm on the OCR Salters board or something like that. I'll try by best to answer any questions you have
    ohh haha I think that's the most popular 4 choices that people tend to take! Im on AQA ahah thank you!
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    (Original post by Einstein786)
    ohh haha I think that's the most popular 4 choices that people tend to take! Im on AQA ahah thank you!
    Meh, only one other person at my school takes the same subjects as me. To be honest I kinda wish I hadn't taken maths now
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    (Original post by Red Fox)
    Same haha, It's not so much the content it's just that I drop so many marks while doing exam questions
    nah I just hate the topic (why does it take up so much of the syllabus ) but the good thing is that the questions are the same every year so its just practise
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    (Original post by Little Tail Chaser)
    Meh, only one other person at my school takes the same subjects as me. To be honest I kinda wish I hadn't taken maths now
    Really? Almost everyone I know at my school has gone with those 4 subjects! Its very popular as far as I know...yeahh haha and a lot of them have said exactly the same thing! I guess it all takes practise, but yess ive heard its very hard!
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    (Original post by NikolaT)
    So 5^2 = root(x^2 + 49) = root(x^2) + root(49)

    25 = x + 7

    x = 18?
    \sqrt{a+b} \not = \sqrt{a} + \sqrt{b} :no:

    (Original post by Little Tail Chaser)
    I'm on the OCR Salters board
    Oooooh, unlucky. I'm with them too for chemistry, currently doing their A2 coursework...it's SO much work, about 18+ hours of labwork and then a 60+ page report...and the grade boundaries for it are so high too.
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    (Original post by usycool1)



    Oooooh, unlucky. I'm with them too for chemistry, currently doing their A2 coursework...it's SO much work, about 18+ hours of labwork and then a 60+ page report...and the grade boundaries for it are so high too.
    60 pages? Dafuuuuq, ain't nobody got time fo' dat.
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    (Original post by NikolaT)
    So 5^2 = root(x^2 + 49) = root(x^2) + root(49)

    25 = x + 7

    x = 18?
    it's x = +/- 24

    god I just don't get logs, I'm gonna need a lot of practice with them
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    (Original post by Little Tail Chaser)
    60 pages? Dafuuuuq, ain't nobody got time fo' dat.
    Art leayu 6- pages, yehsl.
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    (Original post by usycool1)
    \sqrt{a+b} \not = \sqrt{a} + \sqrt{b} :no:
    Woops.
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    Greetings from China guys

    (Original post by Bude8)
    it's x = +/- 24

    god I just don't get logs, I'm gonna need a lot of practice with them
    5^2 = Root(X^2 + 49) (from the rule which Fishy stated)
    5^2^2 = X^2 + 49 (Squaring out to remove root)
    625 = X^2 + 49
    576 = X^2 (Minus 49 to get X^2 only on one side)
    +/- Root(576) = X (Square rooting to get X)
    = +/- 24

    Hope that helps Once youve understood the formula this sort of equation should be very simple.
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    (Original post by The Financier)
    Greetings from China guys
    Merry Christmas, given that you're, what, 8 hours ahead of us?
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    (Original post by Little Tail Chaser)
    Merry Christmas, given that you're, what, 8 hours ahead of us?
    Thanks Merry Christmas Eve! :ahee:
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    (Original post by Little Tail Chaser)
    Merry Christmas, given that you're, what, 8 hours ahead of us?
    Indeed. Happy merry Christmas!!!! Greetings from Malaysia!
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    (Original post by JackTeh96)
    Indeed. Happy merry Christmas!!!! Greetings from Malaysia!
    You, too! :party2:
 
 
 
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