kak nilai dari persamaan eksponen ini berapa ya...

^ tanda pangkat
2^2x+5 × 3^2x = 48
2^2x × 2^5 × 3^-2x = 48
2^5 × 2^2x × (1/3)^2x = 48
32 × (2/3)^2x = 48
(2/3)^2x = 48/32
(2/3)^2x = 3/2
(2/3)^2x = (2/3)^-1
2x = -1
x = -½