Assume that x, y, and b are positive numbers. Use the properties of logarithms to write the expression logb ^8xy in terms of the logarithms of x and y.
a. logb^8 + logb x + logb^y
b. logb^8+logbx
c. logb^8+logby
d. logb^8 + log8 x + log8^y
e. logb^8+log8xy
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