x² - 6x - 27 = 0
                        ( -3 )

x² - 2x - 24 = 0
                        (    )

x² - 2x - 48 = 0
                        (    )

x² - 6x + 8 = 0
                        (    )

x² + 3x - 10 = 0
                        (    )

x² - 8x + 12 = 0
                        (    )

x² - 64 = 0
                        (    )

x² + 5x - 14 = 0
                        (    )

x² + 8x + 16 = 0
                        (    )

x² + 3x - 40 = 0
                        (    )

                      +[    ]

x² + 2x - 15 = 0
                        (    )

x² - 4x - 32 = 0
                        (    )

x² + 11x + 18 = 0
                        (    )

x² + 8x + 15 = 0
                        (    )

x² - 7x - 18 = 0
                        (    )

x² - 13x + 42 = 0
                        (    )

x² - 10x + 21 = 0
                        (    )

x² + 6x - 27 = 0
                        (    )

x² - 4x - 32 = 0
                        (    )

x² + 4x - 21 = 0
                        (    )

                      +[    ]

x² - 2x - 24 = 0
                        (    )

x² + 17x + 72 = 0
                        (    )

x² + 2x - 48 = 0
                        (    )

x² - 36 = 0
                        (    )

x² + 2x - 24 = 0
                        (    )

x² + 2x - 8 = 0
                        (    )

x² - 5x - 24 = 0
                        (    )

x² - 2x - 8 = 0
                        (    )

x² + 11x + 30 = 0
                        (    )

x² - 9 = 0
                        (    )

                      +[    ]
                 +++[[       ]]