You can put this solution on YOUR website! (3*2^x - 4*2^(x-2))/(2^x-2^(x-1))
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Note:: Always factor out the lowest power:: e.g. x^2 + x^3 = x^2(1+x)
= [2^(x-2)[3*2^3 - 4]]/[2(x-1)[2^2-1]]
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= [2^(x-2)[20]]/[2^(x-1)[3]]
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= [20/3x]
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Cheers,
Stan H.
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