mohon bantuannya kak

alog b = c ==> a^c = b
2log 16^(2x-1)/4 = 8
2^8 = 16^(2x-1)/4
2^8 = (2^4)^(2x-1)/4
2^8 = 2^(2x-1)
2x - 1 = 8
2x = 9
x = 9/2
32.9/2 = 16.9 = 144...(D)