а) 4a^2 - 16a = 4a(a - 4)
б) x^2y - 3xy + y^2 - 3y = (x - y)(xy - 3)
в) 9x^2 - 25 = (3x + 5)(3x - 5)
г) x^3 - 10x^2 + 25x = x(x - 5)^2
а) 4a^2 - 16a = 4a(a - 4)
б) x^2y - 3xy + y^2 - 3y = (x - y)(xy - 3)
в) 9x^2 - 25 = (3x + 5)(3x - 5)
г) x^3 - 10x^2 + 25x = x(x - 5)^2