x² - 2x - 48 = 0
                        ( -6 )

x² - 64 = 0
                        (    )

x² + 3x - 10 = 0
                        (    )

x² - x - 56 = 0
                        (    )

x² + 5x - 36 = 0
                        (    )

x² + 9x + 20 = 0
                        (    )

x² + 7x + 10 = 0
                        (    )

x² + 5x + 6 = 0
                        (    )

x² - 3x - 54 = 0
                        (    )

x² - 16 = 0
                        (    )

                      +[    ]

x² - x - 56 = 0
                        (    )

x² + 14x + 48 = 0
                        (    )

x² - 13x + 42 = 0
                        (    )

x² - 16x + 64 = 0
                        (    )

x² - 14x + 48 = 0
                        (    )

x² - 6x - 16 = 0
                        (    )

x² + 4x - 12 = 0
                        (    )

x² - x - 56 = 0
                        (    )

x² - 11x + 18 = 0
                        (    )

x² - 3x - 40 = 0
                        (    )

                      +[    ]

x² - x - 30 = 0
                        (    )

x² + 15x + 54 = 0
                        (    )

x² + x - 72 = 0
                        (    )

x² + 5x - 36 = 0
                        (    )

x² + x - 56 = 0
                        (    )

x² + 18x + 81 = 0
                        (    )

x² - 9x + 20 = 0
                        (    )

x² + 15x + 54 = 0
                        (    )

x² + 15x + 54 = 0
                        (    )

x² - 10x + 24 = 0
                        (    )

                      +[    ]
                 +++[[       ]]