2^(x^2 - x - 1) = 2^(-1) * 2^(3*(2x - 4))
2^(x^2 - x - 1) = 2^ ( - 1 + 3(2x - 4))
2^(x^2 - x - 1) = 2^ ( - 1 + 6x - 12)
2^(x^2 - x - 1) = 2^ ( 6x - 13)
x^2 - x - 1 = 6x - 13
x^2 - 7x + 12 = 0
D = 49 - 48 = 1
x1 = ( 7 + 1)/2 = 4
x2 = (7 - 1)/2 = 3
Ответ
3; 4