Tentukan himpunan penyelesaian dari 3 pangkat x kuadrat kurang 2 x = 27

[tex] {3}^{ {x}^{2} - 2x} = 27 \\ {x}^{2} - 2x = 3 \\ {x}^{2} - 2x - 3 = 0 \\ {x}^{2} + x - 3x - 3 = 0 \\ x(x + 1) - 3(x + 1) = 0 \\ x = 3 \\ x = - 1[/tex]