9 pangkat 3x =27pangkat x-2

Bab Eksponensial
Matematika SMP Kelas IX

^ = pangkat

9^(3x) = 27^(x - 2)
(3²)^(3x) = (3³)^(x - 2)
2 (3x) = 3 (x - 2)
6x = 3x - 6
6x - 3x = -6
3x = -6
x = -6/3
x = -2

[tex] 9^{3x} [/tex]  =  [tex] 27^{x-2} [/tex]

[tex] 3^{6x}[/tex]  = [tex] 3^{3x-6} [/tex]

6x = 3x - 6
x= -2