puppies22
puppies22 puppies22
  • 17-07-2018
  • Mathematics
contestada

Hi!
Can you help me with solving this problem?
[tex] log_{8}2 + log_{8}4x^{2} = 1 [/tex]

Thank you so much!

Respuesta :

razorsharptip
razorsharptip razorsharptip
  • 17-07-2018

log_8(2) + log_8(4x^2) = 1


(adding logs of the same base is multiplying the insides of each of the logs)

log_8(8x^2) = 1


(the base raised to the exponent is equal to the inside of the logarithm)


8^1 = 8x^2


8 = 8x^2


1 = x^2


x = -1; x = 1

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