Question 839366
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Hi,
*[tex \large\ \ nlog_bx = log_b(x^n) ]
*[tex \large\ \ log_bx + log_by = log_b(xy) ]
*[tex \large\ \ log_bx - log_by = log_b(x/y) ]

Write as a single logarithm 
log2x+3logx-1/2logb = {{{log (2x(x^3)/sqrt(b))= log(2x^4/sqrt(b))}}}