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Expand Assume That All Variables Represent Positive Real Numbers logb(xy8z7)\log _ { b } \left( \frac { x y ^ { 8 } } { z ^ { 7 } } \right)

Question 9

Multiple Choice

Expand. Assume that all variables represent positive real numbers.
- logb(xy8z7) \log _ { b } \left( \frac { x y ^ { 8 } } { z ^ { 7 } } \right)


A) logbx+logby8logbz7\log _ { b } x + \log _ { b } y ^ { 8 } - \log _ { b } z ^ { 7 }
B) logbx+8logby7logbz\log _ { \mathrm { b } } x + 8 \log _ { \mathrm { b } } \mathrm { y } - 7 \log _ { \mathrm { b } } z
C) logbx+8logby+7logbz\log _ { b } x + 8 \log _ { b } y + 7 \log _ { b } z
D) logbx+logby8+logbz7\log _ { b } x + \log _ { b } y ^ { 8 } + \log _ { b } z ^ { 7 }

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