Question

Tolong bantu jawab ya :) butuh cepat

Answer 1

9^(2x - 4) = (1/27)^(x^2 - 4)
(3^2)^(2x - 4) = (3^-3)^(x^2 - 4)
3^(4x - 8) = 3^(-3x^2 + 12)
4x - 8 = -3x^2 + 12
3x^2 + 4x - 20 = 0
(3x + 10)(x - 2) = 0
x = -10/3 atau x = 2