x² + 2x - 63 = 0
                        ( -9 )

x² - 13x + 42 = 0
                        (    )

x² + 4x - 12 = 0
                        (    )

x² + 2x - 35 = 0
                        (    )

x² + 17x + 72 = 0
                        (    )

x² - 7x + 12 = 0
                        (    )

x² - 2x - 24 = 0
                        (    )

x² + 12x + 35 = 0
                        (    )

x² - 3x - 10 = 0
                        (    )

x² - 16x + 63 = 0
                        (    )

                      +[    ]

x² + x - 72 = 0
                        (    )

x² - 64 = 0
                        (    )

x² + 10x + 21 = 0
                        (    )

x² - 81 = 0
                        (    )

x² + 12x + 35 = 0
                        (    )

x² - 25 = 0
                        (    )

x² + 14x + 48 = 0
                        (    )

x² + 17x + 72 = 0
                        (    )

x² + x - 72 = 0
                        (    )

x² - 15x + 56 = 0
                        (    )

                      +[    ]

x² + 4x - 45 = 0
                        (    )

x² - 10x + 16 = 0
                        (    )

x² - 11x + 30 = 0
                        (    )

x² + 16x + 64 = 0
                        (    )

x² + 17x + 72 = 0
                        (    )

x² - 4x + 4 = 0
                        (    )

x² + 7x + 10 = 0
                        (    )

x² - 13x + 42 = 0
                        (    )

x² - 3x - 28 = 0
                        (    )

x² + 5x + 6 = 0
                        (    )

                      +[    ]
                 +++[[       ]]