3 × 2 pangkat n+2 × 6 pangkat n-4 dibagi 12 pangkat n-1

3 . 2^(n+2) . 6^(n-4) / 12^(n-1)
= 3 . 2^(n-1) . 2^3 . 6^(n-1) . 6^-3 / 12^(n-1)
= 3 . (2/6)^3 . (2 × 6)^(n-1) / 12^(n-1)
= 3 . 1/3³
= 1/9

jawab

(3. 2ⁿ⁺² )(6 )ⁿ⁻⁴   : (12)ⁿ⁻² =
= (3. 2² . 2ⁿ . 2ⁿ. 2⁻⁴. 3ⁿ.3 ⁻⁴ ) : (2²)ⁿ⁻². (3)ⁿ⁻²
= (2)²ⁿ⁺²⁻⁴(3)ⁿ⁻³ : (2)²ⁿ⁻⁴ (3)ⁿ⁻²
= (2)²ⁿ⁻² (3)ⁿ⁻³  :(2)²ⁿ⁻⁴ .(3)ⁿ⁻²
= (2)² (3)⁻¹
= (4)/(3)