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Mathematics 16 Online
OpenStudy (anonymous):

@ShadowLegendX

OpenStudy (shadowlegendx):

Yes?

OpenStudy (anonymous):

Solve. \[\log_{2} \left( 3-7x \right) = \log_{2} \left( 6x ^{2} \right)\]

OpenStudy (anonymous):

@prowrestler : IS THE ANSWER IS: \[x = -\frac{ 3 }{ 2 } =1.5000\] and \[x \approx 0\] ?

OpenStudy (anonymous):

are you asking me if that's the answer

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

I don't know that's why I posted it

OpenStudy (anonymous):

typo there x =0.3333..

OpenStudy (anonymous):

I'm asking for the answer given in the back page of the book

OpenStudy (anonymous):

its an online class

OpenStudy (anonymous):

there should be a 'SHow Aswer' or 'Hint' button I lost the track of calculation I guess

OpenStudy (anonymous):

do you have a more advanced calculator

OpenStudy (anonymous):

nah. see .. see you know that log can be written in exponential form to so from the above statement we can reqwrite it as: \[[2^{\log_{2} 6x^2 } = 3-7x\]\]

OpenStudy (anonymous):

or \[2^{\log_{2} (3-7x)} = 6x^2\] ..now something ticked in your mind?

OpenStudy (anonymous):

so what would the answer be

OpenStudy (anonymous):

my guesses are that x = -3/2 = 1.5000(approx) x= 1/3 = 0.3333 let me check it out with wolfram....I guess it will be able to compute the right answer .. wait a min...

OpenStudy (anonymous):

oh yes... http://www.wolframalpha.com/input/?i=Solve+log2%283%E2%88%927x%29%3Dlog2%286x2%29 Wolfram also simplified the answer and expressed it in log way rather than the complex exponential way of mine...

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