5.3 Persamaan yang Melibatkan Indeks (Contoh Soalan)
Contoh 4 (Persamaan Indeks (Asas Sama) – Penggantian):
Selesaikan setiap persamaan yang berikut.
(a) 3x
−
1
+ 3x
= 12
(b) 2x + 2x + 3 = 72
(c) 4x + 1 + 22x = 20
(b) 2x + 2x + 3 = 72
(c) 4x + 1 + 22x = 20
Penyelesaian:
![](https://2.bp.blogspot.com/-edv5W1G9wxU/VzYmDbkIlLI/AAAAAAAADKA/xuMvyewkFLkfABlGDzdtoUs_BUCIGJ0lACLcB/s400/Picture22.png)
![](https://4.bp.blogspot.com/-tDpdmeCnT_U/VzYmHMdLa1I/AAAAAAAADKE/VDHr0Lvw0REE-jAjhbbMWEYJxAQRkLfVgCLcB/s400/Picture23.png)
![](https://1.bp.blogspot.com/-qFyznreqIbg/VzYmK67wJJI/AAAAAAAADKI/ZYvitVZfbccav62xp5-e2fnetBGOmm9gQCLcB/s400/Picture24.png)