Question 365511
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Hi, 
properties of logarithms 
*[tex \large\ \ alog_bx = log_b(x)^a ]***
*[tex \large\ \ log_bx + log_by = log_b(xy) ]
*[tex \large\ \ log_bx - log_by = log_b(x/y) ]***
7ln x - 3ln y
ln (x^7) - ln (y^3)
ln(x^7/y^3)