saucysavs saucysavs
  • 02-04-2020
  • Mathematics
contestada

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

Respuesta :

tramserran
tramserran tramserran
  • 02-04-2020

Answer:  2

Step-by-step 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

Answer Link
uhhitztafa uhhitztafa
  • 03-05-2020

Answer:

C. on edge

Step-by-step explanation:

Answer Link

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