x² +11x +30 = 0 (-6)

x² -9x +20 = 0

x² -12x +36 = 0

x² +14x +48 = 0

x² -6x +5 = 0

x² +11x +28 = 0

x² +4x +3 = 0

x² +10x +24 = 0

x² -7x +12 = 0

x² +12x +35 = 0

x² -7x +12 = 0

x² +11x +30 = 0

x² -7x +12 = 0

x² +7x +10 = 0

x² -3x +2 = 0

x² -15x +54 = 0

x² -11x +30 = 0

x² +11x +30 = 0

x² +10x +24 = 0

x² -7x +10 = 0

x² -7x +10 = 0

x² -9x +20 = 0

x² +13x +42 = 0

x² +3x +2 = 0

x² +14x +45 = 0

x² +8x +15 = 0

x² -5x +4 = 0

x² +10x +25 = 0

x² +13x +42 = 0

x² -14x +48 = 0