(12x-4^3)x8^3=4x8^4
=> (12x-64)x512=16384
=> 12x-64=16384:512
=> 12x-64=32
=> 12x = 32+64
=> 12x = 96
=> x = 96:12
=> x = 8
Ta có : ( \(12x\) - \(4^3\) ) = 4 x \(8^4\):\(8^3\)
=> 12x - \(4^3\)= 4 x 8
12x - 64 = 32
12x = 32 + 64
12x = 96
x = 96 : 12 = 8
Vậy x = 8