nilai yg memenuhi persamaan 2× . 8×+². = 64 . 4³× adalah.... a. 0 b. 1 c. 2 d. 3 e. 4

2^x . 8^x+2 = 64 . 4^3x
2^x . (2³)^x+2 = 2^6 . (2²)^3x
2^x. 2^3x+6 = 2^6 . 2^6x
---> x + (3x + 6) = 6 + 6x
---> 4x + 6 = 6 + 6x
---> 4x - 6x = 6 - 6
---> -2x = 0
----> x = 0