6x²- 17x+ 5 = 0; D = b² - 4ac D= 289 - 120 = 169; x₁ = 17+√169 / 12 = 17+13/12 =30/12=10/4=2,5 x₂ = 17-√169 / 12 = 17 - 13/12 = 4/12 = ⅓ Ответ: 2,5; ⅓.