27^(модуль x^2-2)=81

27 = 3³;   81 = 3⁴3*|x² - 2| = 4|x² - 2| = 4/3или x² - 2 = 4/3     или x² - 2 = -4/3       x² = 10/3               x² = 2/3х₁ = √(10/3)х₂ = -√(10/3)х₃ = √(2/3)х₄ = -√(2/3)