| 1) | x2 -11x + 28 = 0 | 2) | x2 + 6x -55 = 0 |
| 3) | x2 + 11x + 24 = 0 | 4) | x2 -17x + 42 = 0 |
| 5) | x2 -7x -18 = 0 | 6) | x2 -4x + 4 = 0 |
| 7) | x2 -13x -14 = 0 | 8) | x2 -4x -5 = 0 |
| 9) | x2 + x -42 = 0 | 10) | x2 -x -156 = 0 |
| 11) | x2 + 16x + 48 = 0 | 12) | x2 + 7x + 6 = 0 |
| 13) | x2 + 8x + 15 = 0 | 14) | x2 -10x + 9 = 0 |
| 15) | x2 -2x -15 = 0 | 16) | x2 + 3x + 2 = 0 |
| 17) | x2 + 25x + 156 = 0 | 18) | x2 -3x -54 = 0 |
| 19) | x2 + 5x -50 = 0 | 20) | x2 + 22x + 105 = 0 |
| 21) | x2 -5x -24 = 0 | 22) | x2 -3x + 2 = 0 |
| 23) | x2 -45x = 0 | 24) | x2 -15x + 56 = 0 |
| 25) | x2 -13x + 30 = 0 | 26) | x2 -17x + 60 = 0 |
| 27) | x2 + 24x + 135 = 0 | 28) | x2 -14x + 48 = 0 |
| 29) | x2 -4x -96 = 0 | 30) | x2 + 5x + 6 = 0 |
| 31) | x2 + 6x -7 = 0 | 32) | x2 -3x -10 = 0 |
| 33) | x2 + 2x -99 = 0 | 34) | x2 -12x + 11 = 0 |
| 35) | x2 -12x + 20 = 0 | 36) | x2 + 8x -9 = 0 |
| 37) | x2 -15x + 44 = 0 | 38) | x2 -11x + 24 = 0 |
| 39) | x2 -7x + 10 = 0 | 40) | x2 + 21x + 110 = 0 |
| 41) | x2 -12x + 11 = 0 | 42) | x2 -3x -4 = 0 |
| 43) | x2 -2x -48 = 0 | 44) | x2 -19x + 60 = 0 |
| 45) | x2 -8x -20 = 0 | 46) | x2 + 16x + 39 = 0 |
| 47) | x2 -7x -60 = 0 | 48) | x2 -13x -14 = 0 |
| 49) | x2 + 13x + 30 = 0 | 50) | x2 -x -20 = 0 |
Joke:
If your father was a mathematician, he would warn you in the form of 'I told you n times; and I told you n+1 times' and so on!