Solve the equation log8x – 4log8x = 2

A. 1/4
B. 1/2
C. 1
D. 2
E. 4

Correct Answer: Option A

A. 1/4

Explanation
log8x – 4log8x = 2; log8x – log8x4 = 2
log8x/x4 = 2
x/x4 = 82 = 1/x3 = 64
x3 = (1/4)3; x = 1/4