Correct question is;
Which of these expressions is equivalent to log (9^2)?
Answer:
D: 2•log 9
Explanation:
From log rules, we know that;
log(a^n) = n•log(a)
Applying that rule to this question, we can simplify log (9^2) as;
log (9^2) = 2•log 9
Looking at the options, the correct one is Option D