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Posted by Sarah on Tuesday, December 11, 2012 at 5:53pm.
More log/exponential equations log2 x + log2(x+2) =3
log2 (x(x+2)) = 3 x(x+2) = 2^3 = 8 x^2 + 2x - 8 = 0 (x+4)(x-2) = 0 x=2 throw out x=-4, since logx is not defined for x<0
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