Решите уравнение 243·
243=3⁵ 1/81=1/3⁴=3⁻⁴ 27=3³ 3⁵ * 3⁻⁴*⁽³ˣ⁻²⁾ = 3³*⁽ˣ⁺³⁾ 3⁵⁺⁽⁻¹²ˣ⁺⁸⁾ = 3³ˣ⁺⁹ 3¹³⁻¹²ˣ = 3³ˣ⁺⁹ 13-12x=3x+9 15x=4 x=4/15