Answer
a. $\log_{3}81=4$
b. $2\log_{3}9=4$
c. They are the same expression, from logarithms power rule
Work Step by Step
a. $\log_{3}81=\log_{3}3^4=4\log_{3}3=4$
b. $ 2\log_{3}9=2\log_{3}3^2=4\log_{3}3=4$
c. They are the same expression, from logarithms power rule.