nilai x yang memenuhi persamaan 2 2x - 2 x+3+16 =0 adalah

[tex] {2}^{2x} - {2}^{x + 3} + 16 = 0 \\ {2}^{2x} - 8 \times {2}^{x} + 16 = 0 \\ mis. \: {2}^{x} = p \\ {p}^{2} - 8p + 16 = 0 \\ {(p - 4)}^{2} = 0 \\ p - 4 = 0 \\ p = 4 \\ {2}^{x} = 4 \\ {2}^{x} = {2}^{2} \\ x = 2[/tex]