x² + x - 6 = 0
                        ( -3 )

x² + 4x - 45 = 0
                        (    )

x² - 2x - 8 = 0
                        (    )

x² - 9x + 14 = 0
                        (    )

x² - 4x - 32 = 0
                        (    )

x² - 16 = 0
                        (    )

x² - 5x + 6 = 0
                        (    )

x² + 9x + 18 = 0
                        (    )

x² + x - 56 = 0
                        (    )

x² - x - 6 = 0
                        (    )

                      +[    ]

x² + 3x - 40 = 0
                        (    )

x² - 9x + 18 = 0
                        (    )

x² - 3x - 28 = 0
                        (    )

x² - 3x - 28 = 0
                        (    )

x² - 4 = 0
                        (    )

x² - 5x - 14 = 0
                        (    )

x² - 4 = 0
                        (    )

x² - 4x - 32 = 0
                        (    )

x² - x - 56 = 0
                        (    )

x² + 4x - 21 = 0
                        (    )

                      +[    ]

x² + 6x + 8 = 0
                        (    )

x² + 8x + 15 = 0
                        (    )

x² + 17x + 72 = 0
                        (    )

x² + 3x - 54 = 0
                        (    )

x² - 11x + 18 = 0
                        (    )

x² + 14x + 45 = 0
                        (    )

x² - 4x - 21 = 0
                        (    )

x² + 13x + 42 = 0
                        (    )

x² - 8x + 15 = 0
                        (    )

x² + 4x - 32 = 0
                        (    )

                      +[    ]
                 +++[[       ]]