а) 16a^2 - 9 = (4a + 3)(4a - 3)
б) 3x^3 - 75x = 3x(x^2 - 25) = 3x(x + 5)(x - 5)
в) 2x^2 + 4xy + 2y^2 = 2(x + y)^2
а) 16a^2 - 9 = (4a + 3)(4a - 3)
б) 3x^3 - 75x = 3x(x^2 - 25) = 3x(x + 5)(x - 5)
в) 2x^2 + 4xy + 2y^2 = 2(x + y)^2