2la puterea15+2la puterea17=2la puterea15•x

Răspuns :

2¹⁵ + 2¹⁷ = 2¹⁵x

2¹⁵(1 + 2²) = 2¹⁵x

2¹⁵×5 = 2¹⁵x

x = 5