x² + 8x + 12 = 0
                        ( -6 )

x² + 13x + 36 = 0
                        (    )

x² - 6x - 16 = 0
                        (    )

x² - 12x + 35 = 0
                        (    )

x² + 2x - 15 = 0
                        (    )

x² - 3x - 10 = 0
                        (    )

x² + 3x - 54 = 0
                        (    )

x² - 5x - 36 = 0
                        (    )

x² - x - 20 = 0
                        (    )

x² - 16x + 63 = 0
                        (    )

                      +[    ]

x² + 4x - 12 = 0
                        (    )

x² - 9x + 18 = 0
                        (    )

x² - 3x - 10 = 0
                        (    )

x² + 3x - 28 = 0
                        (    )

x² + 9x + 18 = 0
                        (    )

x² - 14x + 48 = 0
                        (    )

x² - x - 42 = 0
                        (    )

x² + 10x + 25 = 0
                        (    )

x² + 6x - 27 = 0
                        (    )

x² + 11x + 18 = 0
                        (    )

                      +[    ]

x² + 12x + 35 = 0
                        (    )

x² - 4x - 45 = 0
                        (    )

x² - 6x - 27 = 0
                        (    )

x² + 6x - 27 = 0
                        (    )

x² - 3x - 54 = 0
                        (    )

x² + 7x - 18 = 0
                        (    )

x² + 12x + 35 = 0
                        (    )

x² + 3x - 28 = 0
                        (    )

x² - 81 = 0
                        (    )

x² - 4x + 4 = 0
                        (    )

                      +[    ]
                 +++[[       ]]