( 3/4 )^x = 2^8/3^4. - Dicamon

Question

( 3/4 )^x = 2^8/3^4.

Answer

x = - 4 vậy  . [ 13  ) ( 3 / 4  )^x = 2^8 / 3^4 ] , [ ⇔ > ( 3 / 4  )^x = ( 2^2 )^4 / 3^4 ] , [ ⇔ > ( 3 / 4  )^x = 4^4 / 3^4 ] , [ ⇔ > ( 3 / 4  )^x = ( 4 / 3  )^4 = ( 3 / 4  )^- 4

Answer

.  13. ( 3/4 )^x = 2^8/3^4 ⇔( 3/4 )^x = 256/81 ⇔( 3/4 )^x = ( 3/4 )^- 4 ⇔ x = - 4  .

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