x² + 9x + 20 = 0
                        ( -5 )

x² + 14x + 48 = 0
                        (    )

x² + x - 6 = 0
                        (    )

x² - 25 = 0
                        (    )

x² - 4x - 21 = 0
                        (    )

x² + x - 6 = 0
                        (    )

x² - 17x + 72 = 0
                        (    )

x² + 9x + 14 = 0
                        (    )

x² - 13x + 42 = 0
                        (    )

x² - 11x + 28 = 0
                        (    )

                      +[    ]

x² + 4x + 4 = 0
                        (    )

x² + 3x - 40 = 0
                        (    )

x² - 15x + 54 = 0
                        (    )

x² + 11x + 30 = 0
                        (    )

x² - 4x - 32 = 0
                        (    )

x² - 4x - 45 = 0
                        (    )

x² - 5x - 14 = 0
                        (    )

x² + x - 72 = 0
                        (    )

x² - 11x + 24 = 0
                        (    )

x² - 5x - 36 = 0
                        (    )

                      +[    ]

x² + 3x - 18 = 0
                        (    )

x² + 3x - 40 = 0
                        (    )

x² + x - 42 = 0
                        (    )

x² - 12x + 36 = 0
                        (    )

x² - 13x + 40 = 0
                        (    )

x² - 6x - 27 = 0
                        (    )

x² + 4x - 45 = 0
                        (    )

x² - x - 12 = 0
                        (    )

x² + 13x + 40 = 0
                        (    )

x² + 9x + 20 = 0
                        (    )

                      +[    ]
                 +++[[       ]]