(2³ × 3⁵)² : (2⁴ × 3⁶) : 3² = 6ˣ
(2⁶ × 3¹⁰) : (2⁴ × 3⁶) : 3² = 6ˣ
(2² × 3⁴) : 3² = 6ˣ
2² × 3² = 6ˣ
(2 × 3)² = 6ˣ
6² = 6ˣ
x = 2