x² -10x +25 = 0 (5)

x² -9x +20 = 0

x² +16x +60 = 0

x² +13x +42 = 0

x² +5x +4 = 0

x² -10x +24 = 0

x² +3x +2 = 0

x² -10x +24 = 0

x² +6x +9 = 0

x² +12x +35 = 0

x² -7x +12 = 0

x² -10x +25 = 0

x² -6x +9 = 0

x² +6x +8 = 0

x² -3x +2 = 0

x² +14x +48 = 0

x² -10x +25 = 0

x² +11x +30 = 0

x² -9x +20 = 0

x² +6x +8 = 0

x² +6x +8 = 0

x² -8x +16 = 0

x² +2x +1 = 0

x² -7x +10 = 0

x² +7x +12 = 0

x² -13x +42 = 0

x² +8x +12 = 0

x² +8x +15 = 0

x² +6x +9 = 0

x² -12x +32 = 0