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1. Solve by factoring: x2 + 10x + 24 = 0 x = 1, 24 3, 8 4, 6 -6, -4 2. Solve by factoring: x2 + 4x = 21 x = -3, 7 -7,3 3,7 1, -21 3. Solve by factoring: 3x3 - 27x = 0 x = 3,9 ±3 0,9 0, ±3 4. Solve by factoring: 5x2 = - 30x x = 0, 5, 6 ±6 6 -6, 0 5. Solve by factoring: 3x2 - 12 = - 16x x = -3, 12 4/3, -9 -2/3, 6 -6, 2/3 6. Solve by factoring: 2x2 + 2x - x - 1 = 0 x = 2, 1 -1, 1/2 -1/2, 1 -2, 3 x = 7. Solve by factoring: x2 - 16 = 0 4 ±4 8 ±8 x = 8. Solve by factoring: 5x2 = 3x + 2 -2/5, 1 5, -2 5/2, -1 -1/2, -5 x = 9. Solve by factoring: x2 + 25 = - 10x 25, 1 -5 ±5 -25, -1 x = 10. Solve by factoring: x2 = 8x - 16 8, 2 ±4 8 4 x = 11. Solve by factoring: x2 - 23x - 50 = 0 10, 5 ±5 -2, 25 -2, 10 x = 12. Solve by factoring: x2 - 4x - 5x = - 20 1,5 4, 5 2,10 -4, -5 x = 13. Solve by factoring: 6x2 + 5x = 6 2, 2/3 -3/2 6, -1 -3/2, 2/3 x = 14. Solve by factoring: 20x3 + 30x2 = 0 10, 0, -3/2 3/2 10 0, -3/2 x = 15. Solve by factoring: x2 - 1 = 0 0, 1 ±2 ± 1 1 |