selesaikan persamaaan ⁴log x=xlog 256

4'log x = x'log 256
log x . log x = log 4 . log 256
log² x = log 2^2 . log 2^8
log² x = 2 . log 2 . 8. log 2
log² x = 16 log² 2
log² x = (4 log 2)²
log x = 4 log 2
log x = log 2^4
x = 2^4
x = 16