Question

35 баллов!
$2^{x-1}+2^{x+2}=36$

Answer 1

2ˣ⁻¹ (1 + 2³) = 36
2ˣ⁻¹ · 9 = 36
2ˣ⁻¹ = 4
2ˣ⁻¹  = 2²
x - 1 = 2
x = 3