Question

Solve 2 log x = log 36.

x = ±6
x = 6
x = 18
x = 72

Answer 1

2㏒(x) = ㏒(36)
㏒(x²) = ㏒(36)
x² = 36
√x² = √36
x = ±6

The answer is A.

Answer 2

Answer is B. X=6, Positive and negitive terms cancel out

Explanation: