tolong dibantu yah pakai cara no 9

    32 * 16^2n-1 = 8
2^5 * 2^4(2n-1) = 2^3
     2^5 * 2^8n-4 = 2^3
          2^8n-4+5 = 2^3
               8n + 1 = 3
                     8n = 3 - 1
                       n = 2 / 8
                         = 1/4

9)

32 . 16^(2n-1) = 8
=> 2^5 . [2^4]^(2n-1) = 2^3
=> 2^5 . 2^(8n-4) = 2^3
=> 2^(8n-4+5) = 2^3
=> 2^(8n+1) = 2^3
=> 8n+1 = 3
=> 8n = 3 - 1
=> 8n = 2
=> n = 2/8
=> n = 1/4 (c)