Ответ:
2, (-27 - √569)/20, (-27 + √569)/20
Пошаговое объяснение:
(5x+4)²(x-2) - (5x-4)(x-2)² = 0
(x-2)(25x² + 40x + 16 - 5x² + 4x + 10x - 8) = 0
(x-2)(20x² + 54x + 8) = 0
x1 = 2
20x² + 54x + 8 = 0
10x² + 27x + 4 = 0
D = 729 - 160 = 569
x2 = (-27 - √569)/20
x3 = (-27 + √569)/20