| Hints | Solutions |
| x^2 + 2x - 48 = 0 | |
| x^2 - x - 72 = 0 | |
| x^2 - 49 = 0 | |
| 2x^2 - 50 = 0 | |
| x^2 + 7x + 12 = 0 | |
| x^2 + 5x + 6 = 0 | |
| x^2 - 11x + 30 = 0 | |
| x^2 + 6x + 5 = 0 | |
| x^2 - 100 = 0 | |
| x^2 - 4x = 0 | |
| | Hints | Solutions |
| x^2 - 4x - 60 = 0 | |
| x^2 - 1 = 0 | |
| 3x^2 - 9x = 0 | |
| x^2 = 9 | |
| x^2 - 7x + 12 = 0 | |
| x^2 - 3x - 10 = 0 | |
| x^2 + 15x + 44 = 0 | |
| x^2 + 8x = 20 | |
| x^2 = 6x | |
| x^2 + 36 = 0 | |
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