Пожалуйста даю 15 баллов
1. a) y⁵ - 25y³ = y³(y² - 25) = y³(y - 5)(y + 5) б) 16x + 8x² + x³ = x(16 + 8x + x²) = x(x + 4)² 2. а) 25x² - 16 = 0 (5x - 4)(5x + 4) = 0 5x = 4 и 5x = -4 x = 0,8 и x = -0,8 б) t⁵ = 9t³ t⁵ - 9t³ = 0 t³(t² - 9) = 0 t³(t - 3)(t + 3) = 0 t = -3; 0; 3.