(х-6)*(4х-6)=0 решить уравнение
(x - 6)(4x - 6) = 0 4x² - 6x - 24x + 36 = 0 4x² - 30x + 36 = 0 2x² - 15x + 18 = 0 D = b² - 4ac = 225 - 4 × 2 × 18 = 225 - 144 = 81 = 9² x1 = ( 15 + 9) / 4 = 6 x2 = ( 15 - 9) / 4 = 1,5 Ответ: x1 = 6, x2 = 1,5.