x² + 7x + 12 = 0 ( -4 )
x² + 12x + 35 = 0 ( )
x² + 7x + 12 = 0 ( )
x² - 10x + 16 = 0 ( )
x² - 10x + 16 = 0 ( )
+[ ]
|
x² - 10x + 21 = 0 ( )
x² - 6x + 9 = 0 ( )
x² + 7x + 12 = 0 ( )
x² + 9x + 20 = 0 ( )
x² + 12x + 36 = 0 ( )
+[ ]
|
x² - 12x + 35 = 0 ( )
x² - 11x + 30 = 0 ( )
x² + 17x + 72 = 0 ( )
x² - 15x + 54 = 0 ( )
x² + 17x + 72 = 0 ( )
+[ ] +++[[ ]]
|