8^5 = 2^x
32.768 = (2^3)^5 = 2^15
x = 15
8^5 = 8×8×8×8×8=32.768
8⁵ = 2ˣ
(2³)⁵ = 2ˣ
2¹⁵ = 2ˣ ⇒ x = 15.
@robertinnifd