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Solve for the following logarithmic functions:

(a) log3 (2x-1) = 2             x = Answer

(b) logx 16 = 2                  x = Answer

Guest Aug 14, 2017
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Use the fact that   loga b = c means  b = ac

 

(a)  log3 (2x-1) = 2   means  2x - 1 = 32,   or  x = (32 + 1)/2  or  x = 5

 

(b)  logx 16 = 2   means   16 = x2,   so x = 4

Alan  Aug 14, 2017

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