Solve the equation log8x - 4log8x = 2

A.

1/4

B.

1/2

C.

1

D.

2

E.

4

View answer & explanation

Correct answer is A

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

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