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Express logb(x12y15z8)\log b \left( \frac { x ^ { \frac { 1 } { 2 } } y ^ { \frac { 1 } { 5 } } } { z ^ { 8 } } \right)

Question 21

Multiple Choice

Express logb(x12y15z8) \log b \left( \frac { x ^ { \frac { 1 } { 2 } } y ^ { \frac { 1 } { 5 } } } { z ^ { 8 } } \right) as the sum or difference of simpler logarithmic quantities. Assume that all variables represent positive real numbers.


A) 12logbx+15logby8logbz\frac { 1 } { 2 } \log b x + \frac { 1 } { 5 } \log b y - 8 \log b z
B) 18logbx2logby+15logbz\frac { 1 } { 8 } \log _ { b } x - 2 \log _ { b } y + \frac { 1 } { 5 } \log _ { b } z
C) 8logbz12logbx+15logby8 \log _ { b } z - \frac { 1 } { 2 } \log _ { b } x + \frac { 1 } { 5 } \log b y
D) 15logbx+12logby8logbz\frac { 1 } { 5 } \log b x + \frac { 1 } { 2 } \log b y - 8 \log b z

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