Question 435712
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Hi
Need to be familiar with the Properties of Logarithms

*[tex \large \ \ \ \ \ \ \ log_b(x) \ = \ y \ \ \Rightarrow\ \ b^y = x]
*[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) ]

*[tex \LARGE\ \ log_8 25 + log_8 a^4 -log_8 b^5  = log_b 25a^4/b^5 ]