Question

What is the true solution to 3 l n 2 + l n 8 = 2 l n (4 x)

Answer 1

C. on edge

Explanation:

Answer 2

Answer: 2

Explanation:

3 ln (2) + ln (8) = 2 ln (4x)

ln (2)³ + ln (8) = ln (4x)²

ln (2³ · 8) = ln (4x)²

(2³ · 8) = (4x)²

64 = 16x²

4 = x²

±2 = x

-2 is an extraneous solution because x > 0

The only valid answer is x = 2