| 1) | x2 + 25x + 156 = 0 | 2) | x2 -11x -12 = 0 |
| 3) | x2 + 6x -16 = 0 | 4) | x2 + 17x + 70 = 0 |
| 5) | x2 + 4x + 4 = 0 | 6) | x2 + x -110 = 0 |
| 7) | x2 + 14x + 45 = 0 | 8) | x2 -2x -3 = 0 |
| 9) | x2 -19x + 84 = 0 | 10) | x2 -11x -42 = 0 |
| 11) | x2 + 12x + 32 = 0 | 12) | x2 -10x -11 = 0 |
| 13) | x2 + 17x + 66 = 0 | 14) | x2 -4x -96 = 0 |
| 15) | x2 + 3x -40 = 0 | 16) | x2 + 7x -44 = 0 |
| 17) | x2 -3x + 2 = 0 | 18) | x2 + 8x + 12 = 0 |
| 19) | x2 -7x -8 = 0 | 20) | x2 + 15x + 14 = 0 |
| 21) | x2 + 17x + 52 = 0 | 22) | x2 -19x + 88 = 0 |
| 23) | x2 + 13x + 30 = 0 | 24) | x2 -16x + 55 = 0 |
| 25) | x2 -9x + 18 = 0 | 26) | x2 + 17x + 70 = 0 |
| 27) | x2 -8x -9 = 0 | 28) | x2 -10x -11 = 0 |
| 29) | x2 -24x + 140 = 0 | 30) | x2 -11x -12 = 0 |
| 31) | x2 -2x -24 = 0 | 32) | x2 -19x + 78 = 0 |
| 33) | x2 + 4x -12 = 0 | 34) | x2 + 7x -30 = 0 |
| 35) | x2 + 8x -48 = 0 | 36) | x2 + 7x + 6 = 0 |
| 37) | x2 + 11x -42 = 0 | 38) | x2 + 2x + 1 = 0 |
| 39) | x2 -14x + 24 = 0 | 40) | x2 -16x + 60 = 0 |
| 41) | x2 -5x + 6 = 0 | 42) | x2 + 12x + 11 = 0 |
| 43) | x2 -9x + 20 = 0 | 44) | x2 -x -90 = 0 |
| 45) | x2 -10x + 24 = 0 | 46) | x2 -17x + 42 = 0 |
| 47) | x2 -18x + 72 = 0 | 48) | x2 + 2x -99 = 0 |
| 49) | x2 + 24x + 140 = 0 | 50) | x2 -10x -11 = 0 |
Joke:
Terry shouted at his stubborn public-school-boy son: 'I pay thousands of pounds to your schoolmasters; but your classmates seem to be your mentors!'