x² + x - 30 = 0
                        ( -6 )

x² + 12x + 32 = 0
                        (    )

x² - 15x + 56 = 0
                        (    )

x² + 8x + 16 = 0
                        (    )

x² - x - 6 = 0
                        (    )

x² - 11x + 30 = 0
                        (    )

x² + 5x - 14 = 0
                        (    )

x² - 8x + 12 = 0
                        (    )

x² - 10x + 16 = 0
                        (    )

x² + 2x - 8 = 0
                        (    )

                      +[    ]

x² - x - 30 = 0
                        (    )

x² + 3x - 18 = 0
                        (    )

x² + 10x + 16 = 0
                        (    )

x² - 25 = 0
                        (    )

x² - 2x - 24 = 0
                        (    )

x² - 17x + 72 = 0
                        (    )

x² - 4x - 12 = 0
                        (    )

x² + 7x - 18 = 0
                        (    )

x² - 4x - 21 = 0
                        (    )

x² - 3x - 28 = 0
                        (    )

                      +[    ]

x² - 14x + 45 = 0
                        (    )

x² - 13x + 36 = 0
                        (    )

x² - 14x + 49 = 0
                        (    )

x² - 5x - 36 = 0
                        (    )

x² + 7x - 18 = 0
                        (    )

x² - 10x + 24 = 0
                        (    )

x² + 5x - 24 = 0
                        (    )

x² - 81 = 0
                        (    )

x² + 7x - 18 = 0
                        (    )

x² + x - 20 = 0
                        (    )

                      +[    ]
                 +++[[       ]]