reduce the coe cients and solve. document...

Reduce the coefficients and solve.

1. 3x2 − 9x + 6 = 0

2. −5x2 − 25x + 15 = 0

3. 14x2 + 35x− 14 = 0

4. −6x2 − 18x− 6 = 0

5. 4x2 + 10x− 2 = 0

6. 6x2 − 24x− 6 = 0

Document No.QER8491001

7. 12x2 − 24x + 4 = 0

8. −10x2 + 20x + 10 = 0

9. −15x2 + 30x + 5 = 0

10. 7x2 + 42x + 7 = 0

11. 10x2 − 30x + 5 = 0

12. 4x2 − 10x + 6 = 0


1. 6x2 + 18x− 6 = 0

2. 5x2 − 25x + 15 = 0

3. 8x2 − 20x + 4 = 0

4. −2x2 − 12x + 2 = 0

5. 7x2 + 21x− 14 = 0

6. −6x2 − 12x + 12 = 0


7. 7x2 + 35x + 7 = 0

8. 7x2 + 14x + 7 = 0

9. 2x2 − 10x− 2 = 0

10. 14x2 + 14x− 14 = 0

11. 5x2 + 30x + 5 = 0

12. 2x2 + 10x− 2 = 0


1. −4x2 + 10x + 2 = 0

2. −4x2 − 24x− 8 = 0

3. 3x2 + 15x + 9 = 0

4. 2x2 − 12x− 2 = 0

5. 15x2 − 35x + 10 = 0

6. −3x2 − 9x + 9 = 0


7. −15x2 − 20x + 5 = 0

8. −2x2 − 6x + 2 = 0

9. 7x2 − 35x + 7 = 0

10. 18x2 + 24x + 6 = 0

11. 3x2 + 18x + 9 = 0

12. 7x2 + 35x + 7 = 0


1. −12x2 − 12x + 12 = 0

2. 15x2 + 10x− 10 = 0

3. 6x2 + 24x + 18 = 0

4. −5x2 − 20x− 5 = 0

5. 12x2 + 36x− 6 = 0

6. 3x2 + 18x + 3 = 0


7. −6x2 − 18x + 3 = 0

8. 6x2 + 36x− 18 = 0

9. 5x2 + 30x + 10 = 0

10. −14x2 − 28x− 14 = 0

11. −6x2 + 30x + 6 = 0

12. −9x2 − 15x− 6 = 0


1. 10x2 + 25x− 5 = 0

2. 4x2 + 8x− 4 = 0

3. 10x2 − 10x− 5 = 0

4. 12x2 − 48x + 18 = 0

5. −6x2 + 9x− 3 = 0

6. −5x2 + 25x + 5 = 0


7. 6x2 + 18x− 6 = 0

8. 2x2 − 8x− 2 = 0

9. −15x2 − 25x− 5 = 0

10. 6x2 + 24x− 6 = 0

11. −4x2 + 8x + 2 = 0

12. −7x2 − 28x + 7 = 0


1. 6x2 + 18x− 6 = 0

2. 7x2 − 28x + 7 = 0

3. 4x2 − 20x− 8 = 0

4. −10x2 + 30x + 5 = 0

5. −4x2 + 24x− 8 = 0

6. 6x2 − 36x + 6 = 0


7. −10x2 − 10x + 5 = 0

8. −2x2 − 10x + 2 = 0

9. 14x2 + 42x− 7 = 0

10. −3x2 − 15x− 3 = 0

11. −4x2 − 16x + 12 = 0

12. 5x2 + 10x− 15 = 0


1. 7x2 + 21x− 21 = 0

2. 4x2 + 24x + 4 = 0

3. 2x2 + 6x + 4 = 0

4. 6x2 − 24x + 18 = 0

5. 7x2 − 14x− 14 = 0

6. −4x2 + 10x + 2 = 0


7. 3x2 − 21x + 6 = 0

8. −5x2 − 30x− 5 = 0

9. −7x2 − 28x + 7 = 0

10. 7x2 − 42x + 14 = 0

11. 6x2 + 24x− 18 = 0

12. −7x2 + 28x + 21 = 0


1. −8x2 − 28x− 12 = 0

2. 12x2 − 36x− 6 = 0

3. 3x2 − 6x− 6 = 0

4. −8x2 + 20x + 4 = 0

5. −2x2 + 4x + 2 = 0

6. 5x2 − 10x + 5 = 0


7. −5x2 − 20x + 5 = 0

8. −3x2 − 15x + 3 = 0

9. −2x2 + 12x + 2 = 0

10. −3x2 − 6x + 6 = 0

11. 5x2 + 15x + 5 = 0

12. 3x2 + 18x + 6 = 0


1. −7x2 + 28x− 21 = 0

2. 4x2 − 8x + 4 = 0

3. 12x2 + 18x + 6 = 0

4. −15x2 − 15x + 5 = 0

5. 2x2 − 6x + 4 = 0

6. 6x2 + 12x + 6 = 0


7. −5x2 + 15x + 5 = 0

8. 7x2 + 35x− 7 = 0

9. −7x2 − 14x + 14 = 0

10. −2x2 + 12x + 2 = 0

11. −4x2 − 8x + 4 = 0

12. 4x2 + 16x− 8 = 0


1. 3x2 + 9x + 3 = 0

2. 5x2 − 15x− 10 = 0

3. −5x2 − 25x + 5 = 0

4. −3x2 − 15x− 3 = 0

5. −12x2 + 28x− 8 = 0

6. 10x2 + 20x + 10 = 0


7. −5x2 − 25x + 10 = 0

8. −6x2 + 36x− 6 = 0

9. 4x2 − 24x− 4 = 0

10. 9x2 − 15x− 3 = 0

11. −2x2 − 8x− 4 = 0

12. −8x2 + 12x + 4 = 0


1. −6x2 − 36x− 6 = 0

2. −18x2 − 12x + 6 = 0

3. −7x2 − 42x− 21 = 0

4. 3x2 − 18x− 6 = 0

5. 6x2 + 6x− 4 = 0

6. −7x2 + 14x + 14 = 0


7. −5x2 − 25x + 5 = 0

8. 3x2 + 6x + 3 = 0

9. 6x2 + 36x + 6 = 0

10. 2x2 − 10x− 6 = 0

11. 6x2 + 24x + 18 = 0

12. −10x2 + 10x + 10 = 0


1. −15x2 − 30x + 5 = 0

2. 4x2 + 24x− 4 = 0

3. −6x2 + 12x− 2 = 0

4. 3x2 + 15x− 3 = 0

5. −2x2 − 8x + 2 = 0

6. −10x2 − 15x− 5 = 0


7. −5x2 − 15x− 10 = 0

8. −5x2 + 30x− 5 = 0

9. 6x2 − 12x− 18 = 0

10. 4x2 + 12x + 2 = 0

11. −5x2 − 20x + 10 = 0

12. 12x2 − 24x− 4 = 0


1. −2x2 − 6x− 4 = 0

2. −12x2 + 36x + 6 = 0

3. −8x2 − 8x + 8 = 0

4. 4x2 − 8x− 6 = 0

5. 8x2 + 8x− 4 = 0

6. 4x2 − 12x + 4 = 0


7. 6x2 − 18x− 6 = 0

8. −8x2 − 20x− 4 = 0

9. −10x2 + 30x + 10 = 0

10. 4x2 + 16x− 8 = 0

11. −6x2 + 18x− 3 = 0

12. −7x2 + 42x− 14 = 0


1. 8x2 + 20x− 8 = 0

2. 5x2 − 30x + 15 = 0

3. −7x2 + 21x + 7 = 0

4. 15x2 + 10x− 10 = 0

5. 4x2 + 24x− 8 = 0

6. 8x2 − 24x− 4 = 0


7. 6x2 + 24x− 6 = 0

8. 2x2 − 10x− 2 = 0

9. −4x2 − 24x + 8 = 0

10. 6x2 + 30x + 12 = 0

11. 6x2 − 12x + 3 = 0

12. 6x2 + 12x + 3 = 0


1. −7x2 + 35x− 7 = 0

2. 5x2 − 20x− 5 = 0

3. −14x2 + 35x− 14 = 0

4. −9x2 + 15x + 3 = 0

5. −4x2 + 14x− 4 = 0

6. −5x2 + 10x− 5 = 0


7. 5x2 − 20x + 5 = 0

8. 8x2 + 16x− 4 = 0

9. 3x2 + 18x + 3 = 0

10. 4x2 + 8x− 4 = 0

11. −2x2 + 6x + 2 = 0

12. 4x2 + 24x + 4 = 0


1. −10x2 + 15x + 5 = 0

2. 4x2 + 12x− 4 = 0

3. −21x2 + 42x− 7 = 0

4. 14x2 + 21x + 7 = 0

5. −5x2 + 20x + 5 = 0

6. −2x2 − 10x + 2 = 0


7. −6x2 − 36x + 18 = 0

8. 3x2 + 15x + 6 = 0

9. 5x2 + 30x + 5 = 0

10. 6x2 − 12x + 2 = 0

11. −4x2 + 6x + 2 = 0

12. 4x2 + 20x + 8 = 0


1. 5x2 − 25x + 5 = 0

2. 12x2 + 30x + 12 = 0

3. −7x2 − 14x− 7 = 0

4. 6x2 + 12x− 2 = 0

5. −3x2 + 9x + 6 = 0

6. 4x2 + 24x− 12 = 0


7. −2x2 + 12x− 2 = 0

8. 5x2 − 15x− 5 = 0

9. 6x2 + 15x + 6 = 0

10. 7x2 − 42x + 7 = 0

11. 7x2 − 35x + 7 = 0

12. −5x2 + 20x− 15 = 0


1. −6x2 + 16x− 4 = 0

2. 5x2 + 20x + 15 = 0

3. 18x2 + 18x− 6 = 0

4. 4x2 + 24x + 8 = 0

5. 5x2 − 25x− 10 = 0

6. 6x2 + 24x− 18 = 0


7. −3x2 + 12x + 9 = 0

8. 6x2 − 30x− 6 = 0

9. −7x2 − 28x− 7 = 0

10. 12x2 − 12x− 4 = 0

11. 8x2 + 16x− 8 = 0

12. −4x2 − 20x + 4 = 0


1. 6x2 + 36x− 6 = 0

2. 7x2 + 28x + 14 = 0

3. −4x2 + 4x + 6 = 0

4. 10x2 + 30x + 15 = 0

5. 8x2 + 8x− 8 = 0

6. −4x2 − 24x− 4 = 0


7. −4x2 − 16x + 4 = 0

8. 6x2 − 15x + 3 = 0

9. 4x2 + 24x− 12 = 0

10. −3x2 − 12x− 9 = 0

11. −4x2 − 12x + 8 = 0

12. 7x2 + 28x− 7 = 0


1. 2x2 − 10x + 4 = 0

2. −14x2 + 21x + 7 = 0

3. 6x2 + 36x + 6 = 0

4. 8x2 − 16x + 4 = 0

5. −18x2 − 24x + 6 = 0

6. −2x2 − 8x + 2 = 0


7. 18x2 − 30x + 6 = 0

8. 6x2 + 30x− 6 = 0

9. 4x2 − 20x− 12 = 0

10. −4x2 − 8x + 4 = 0

11. −6x2 + 12x + 12 = 0

12. 5x2 − 25x− 5 = 0


1. 6x2 − 30x + 18 = 0

2. −4x2 + 20x + 12 = 0

3. −12x2 + 18x− 6 = 0

4. −7x2 − 28x + 21 = 0

5. 7x2 + 14x− 7 = 0

6. −4x2 + 24x + 4 = 0


7. −6x2 − 15x− 3 = 0

8. 12x2 − 16x + 4 = 0

9. 2x2 − 8x + 2 = 0

10. −6x2 + 12x + 3 = 0

11. −5x2 − 10x + 5 = 0

12. 4x2 + 12x− 8 = 0


1. −4x2 − 16x + 4 = 0

2. 5x2 + 30x + 5 = 0

3. −4x2 − 8x− 4 = 0

4. −7x2 − 14x− 7 = 0

5. −5x2 − 30x− 15 = 0

6. 5x2 − 30x + 10 = 0


7. −5x2 + 10x + 10 = 0

8. −9x2 − 15x + 3 = 0

9. −2x2 − 10x− 2 = 0

10. 2x2 − 6x− 4 = 0

11. −4x2 + 8x− 4 = 0

12. −6x2 + 6x + 3 = 0


1. −7x2 − 42x + 7 = 0

2. −4x2 − 8x− 2 = 0

3. −6x2 + 30x + 6 = 0

4. 2x2 − 6x + 2 = 0

5. −14x2 + 35x + 14 = 0

6. −6x2 + 15x− 9 = 0


7. −15x2 − 10x + 15 = 0

8. 14x2 + 21x + 7 = 0

9. 4x2 − 24x + 4 = 0

10. −4x2 + 10x + 2 = 0

11. −3x2 − 15x + 3 = 0

12. 7x2 + 21x + 14 = 0


1. −7x2 + 35x− 7 = 0

2. 6x2 + 36x + 6 = 0

3. −8x2 − 24x + 12 = 0

4. 5x2 − 15x− 5 = 0

5. −8x2 + 16x− 8 = 0

6. −6x2 − 10x− 4 = 0


7. −5x2 − 15x− 5 = 0

8. −18x2 + 24x− 6 = 0

9. 6x2 + 15x− 6 = 0

10. −12x2 + 12x + 4 = 0

11. 12x2 + 30x + 6 = 0

12. 5x2 + 30x− 10 = 0


1. 2x2 + 4x− 2 = 0

2. −12x2 − 24x + 6 = 0

3. 4x2 + 24x + 4 = 0

4. 5x2 + 30x + 5 = 0

5. −6x2 + 8x− 2 = 0

6. 5x2 − 20x + 5 = 0


7. 2x2 − 4x + 2 = 0

8. 4x2 − 16x + 12 = 0

9. 3x2 − 9x + 3 = 0

10. 2x2 + 12x− 4 = 0

11. 3x2 + 12x + 6 = 0

12. 4x2 + 24x + 4 = 0


1. 6x2 + 24x + 12 = 0

2. 4x2 − 4x− 2 = 0

3. −10x2 − 15x + 10 = 0

4. 7x2 + 35x− 14 = 0

5. −2x2 − 12x− 6 = 0

6. −6x2 − 24x− 12 = 0


7. −18x2 − 30x− 12 = 0

8. −3x2 − 15x + 9 = 0

9. −2x2 + 8x + 2 = 0

10. 7x2 + 35x + 7 = 0

11. 3x2 + 6x− 3 = 0

12. −3x2 − 9x + 3 = 0


1. 2x2 + 10x− 4 = 0

2. −5x2 − 25x− 15 = 0

3. 6x2 + 24x + 18 = 0

4. 12x2 − 12x− 6 = 0

5. 6x2 − 6x− 6 = 0

6. 6x2 − 42x + 12 = 0


7. 5x2 + 25x− 10 = 0

8. −6x2 − 18x + 6 = 0

9. −4x2 + 16x− 8 = 0

10. −6x2 − 12x + 6 = 0

11. 12x2 − 20x + 4 = 0

12. −2x2 − 12x + 4 = 0


1. 4x2 + 8x− 2 = 0

2. −7x2 − 42x− 7 = 0

3. −2x2 + 6x− 2 = 0

4. −7x2 + 28x− 7 = 0

5. −5x2 + 10x + 5 = 0

6. −12x2 + 20x− 4 = 0


7. 4x2 − 20x− 4 = 0

8. −5x2 − 30x + 5 = 0

9. 2x2 − 10x− 2 = 0

10. 3x2 + 6x− 3 = 0

11. −6x2 − 6x + 6 = 0

12. 7x2 − 28x + 7 = 0


1. −2x2 − 12x + 4 = 0

2. −6x2 + 24x + 18 = 0

3. 3x2 − 12x + 6 = 0

4. 6x2 − 30x + 12 = 0

5. 10x2 − 35x + 10 = 0

6. 7x2 − 35x + 7 = 0


7. −4x2 − 8x + 4 = 0

8. 6x2 + 9x− 3 = 0

9. 4x2 + 16x− 4 = 0

10. −6x2 + 36x− 6 = 0

11. 5x2 − 30x + 10 = 0

12. −9x2 − 18x + 3 = 0


1. 6x2 + 36x− 12 = 0

2. −9x2 − 12x + 3 = 0

3. 12x2 + 20x− 4 = 0

4. 12x2 + 20x− 4 = 0

5. −3x2 − 6x + 3 = 0

6. −4x2 − 12x− 2 = 0


7. −3x2 + 6x− 3 = 0

8. −5x2 − 30x− 5 = 0

9. 18x2 − 30x− 18 = 0

10. 3x2 − 15x− 9 = 0

11. 2x2 − 6x− 2 = 0

12. −7x2 + 21x + 14 = 0


1. −2x2 − 12x− 6 = 0

2. −7x2 − 14x− 7 = 0

3. −8x2 − 8x + 4 = 0

4. 8x2 − 20x− 4 = 0

5. 6x2 − 12x− 6 = 0

6. 5x2 − 25x− 10 = 0


7. 5x2 − 30x− 10 = 0

8. 8x2 + 16x− 8 = 0

9. 6x2 + 12x + 6 = 0

10. 3x2 − 12x + 3 = 0

11. −4x2 − 20x + 4 = 0

12. −12x2 + 8x + 4 = 0


1. 7x2 − 14x− 7 = 0

2. 7x2 + 28x− 7 = 0

3. −5x2 + 25x + 5 = 0

4. −18x2 − 36x + 12 = 0

5. 4x2 + 12x− 4 = 0

6. −10x2 − 20x + 5 = 0


7. 6x2 − 12x + 6 = 0

8. 6x2 + 30x + 6 = 0

9. −6x2 + 30x + 6 = 0

10. 6x2 − 18x− 18 = 0

11. −2x2 + 10x− 2 = 0

12. −4x2 − 8x− 4 = 0


1. 4x2 + 8x + 2 = 0

2. 10x2 + 20x + 5 = 0

3. −4x2 + 8x− 4 = 0

4. 7x2 + 28x + 7 = 0

5. 4x2 − 8x + 4 = 0

6. 4x2 + 20x + 4 = 0


7. −12x2 − 24x− 4 = 0

8. 18x2 − 36x + 12 = 0

9. 6x2 + 30x− 12 = 0

10. 2x2 − 6x− 2 = 0

11. 2x2 + 8x− 2 = 0

12. −2x2 + 4x− 2 = 0


1. −6x2 + 36x + 12 = 0

2. −7x2 − 35x + 14 = 0

3. −5x2 − 15x + 5 = 0

4. 9x2 + 12x− 3 = 0

5. 12x2 − 30x− 6 = 0

6. 3x2 + 6x + 3 = 0


7. −6x2 − 18x− 3 = 0

8. 4x2 + 16x− 8 = 0

9. −14x2 − 28x− 7 = 0

10. 6x2 − 9x− 3 = 0

11. −8x2 + 12x + 4 = 0

12. −18x2 − 30x− 6 = 0


1. −4x2 − 24x + 8 = 0

2. 10x2 + 15x− 5 = 0

3. 12x2 − 18x + 6 = 0

4. 3x2 + 15x + 6 = 0

5. −6x2 + 4x + 2 = 0

6. −9x2 + 18x− 9 = 0


7. 6x2 + 24x + 18 = 0

8. −3x2 − 6x + 9 = 0

9. −15x2 + 15x + 5 = 0

10. −8x2 + 12x + 4 = 0

11. 2x2 + 10x + 2 = 0

12. −18x2 − 18x + 6 = 0


1. −12x2 + 30x + 6 = 0

2. −12x2 + 24x− 12 = 0

3. 5x2 − 10x + 5 = 0

4. −12x2 + 8x + 8 = 0

5. 6x2 − 18x− 6 = 0

6. −2x2 + 10x− 4 = 0


7. −3x2 − 18x + 3 = 0

8. −10x2 + 35x− 15 = 0

9. 10x2 − 25x− 5 = 0

10. −5x2 − 30x− 10 = 0

11. −6x2 − 8x + 2 = 0

12. −3x2 + 9x− 3 = 0


1. 5x2 + 10x + 5 = 0

2. 5x2 − 20x + 15 = 0

3. −6x2 − 12x− 6 = 0

4. −2x2 + 12x + 2 = 0

5. −21x2 − 21x + 7 = 0

6. −4x2 + 8x− 4 = 0


7. 14x2 − 42x− 21 = 0

8. 3x2 − 12x + 3 = 0

9. 2x2 − 8x− 2 = 0

10. 4x2 + 12x + 2 = 0

11. 6x2 + 24x + 6 = 0

12. 6x2 + 30x + 6 = 0


1. −14x2 − 56x− 14 = 0

2. 5x2 − 25x + 15 = 0

3. 2x2 + 8x + 2 = 0

4. 6x2 + 30x− 6 = 0

5. −14x2 − 14x + 7 = 0

6. 4x2 + 8x− 8 = 0


7. −12x2 + 24x + 8 = 0

8. −10x2 + 25x + 10 = 0

9. 9x2 + 15x + 3 = 0

10. 10x2 + 25x + 5 = 0

11. 8x2 + 12x− 4 = 0

12. 12x2 + 20x + 8 = 0


1. −6x2 + 30x + 18 = 0

2. 5x2 + 30x− 15 = 0

3. −5x2 + 25x− 5 = 0

4. −6x2 − 30x + 6 = 0

5. 8x2 − 16x + 4 = 0

6. 10x2 − 20x− 5 = 0


7. 6x2 + 24x + 6 = 0

8. 2x2 − 4x + 2 = 0

9. 5x2 + 15x + 5 = 0

10. 4x2 − 16x + 2 = 0

11. 4x2 + 16x− 4 = 0

12. 6x2 + 9x + 3 = 0


1. 14x2 − 28x− 7 = 0

2. 6x2 − 4x− 6 = 0

3. 6x2 − 15x + 3 = 0

4. −3x2 − 18x− 3 = 0

5. −3x2 − 15x + 6 = 0

6. 18x2 + 12x− 18 = 0


7. 7x2 + 42x + 21 = 0

8. −6x2 + 36x− 6 = 0

9. 6x2 − 24x− 12 = 0

10. −14x2 − 42x− 14 = 0

11. −3x2 − 6x + 6 = 0

12. 14x2 + 35x− 14 = 0


1. 4x2 − 20x− 12 = 0

2. 9x2 + 9x− 3 = 0

3. −2x2 − 6x + 2 = 0

4. 18x2 + 36x− 18 = 0

5. −3x2 + 15x + 3 = 0

6. −2x2 + 8x + 2 = 0


7. −4x2 + 24x− 8 = 0

8. −15x2 − 35x− 10 = 0

9. 4x2 − 8x + 4 = 0

10. 2x2 − 4x + 2 = 0

11. 5x2 + 15x− 5 = 0

12. −12x2 − 24x + 18 = 0


1. 4x2 − 12x− 12 = 0

2. −3x2 + 15x− 6 = 0

3. 5x2 + 30x− 10 = 0

4. 3x2 + 9x + 3 = 0

5. 4x2 + 16x− 4 = 0

6. 6x2 − 30x + 18 = 0


7. 2x2 + 8x− 2 = 0

8. 8x2 − 24x− 4 = 0

9. −5x2 + 15x + 15 = 0

10. 7x2 − 42x− 14 = 0

11. 7x2 + 42x− 7 = 0

12. −12x2 + 24x− 6 = 0


1. 6x2 − 6x− 6 = 0

2. −12x2 − 30x− 12 = 0

3. 6x2 + 36x + 12 = 0

4. −5x2 + 30x− 5 = 0

5. −9x2 − 12x + 3 = 0

6. −4x2 − 10x + 4 = 0


7. 2x2 + 6x− 2 = 0

8. −14x2 − 35x + 14 = 0

9. 2x2 + 6x + 4 = 0

10. 5x2 + 20x + 5 = 0

11. −7x2 + 21x− 7 = 0

12. 3x2 − 6x− 9 = 0


1. −4x2 − 8x− 4 = 0

2. 2x2 − 6x + 2 = 0

3. −12x2 − 20x− 8 = 0

4. −9x2 − 18x− 3 = 0

5. −3x2 + 12x + 9 = 0

6. −9x2 − 12x− 3 = 0


7. −7x2 + 35x− 7 = 0

8. −3x2 − 6x + 6 = 0

9. 10x2 + 25x + 5 = 0

10. −4x2 − 12x− 4 = 0

11. −5x2 − 30x− 5 = 0

12. −7x2 − 42x + 7 = 0


1. −18x2 − 18x + 6 = 0

2. −10x2 + 30x− 15 = 0

3. 5x2 + 30x + 5 = 0

4. −21x2 + 35x− 7 = 0

5. −3x2 − 15x− 3 = 0

6. −8x2 − 8x + 8 = 0


7. 3x2 − 18x + 3 = 0

8. −5x2 + 20x− 5 = 0

9. 8x2 − 8x− 12 = 0

10. 4x2 + 8x + 4 = 0

11. −21x2 − 14x + 7 = 0

12. 6x2 − 18x + 3 = 0


1. −14x2 + 35x− 14 = 0

2. −8x2 − 24x− 4 = 0

3. 3x2 − 18x− 6 = 0

4. −3x2 − 12x + 3 = 0

5. 6x2 − 36x− 18 = 0

6. −12x2 + 16x + 4 = 0


7. −14x2 − 35x + 14 = 0

8. 4x2 + 24x + 4 = 0

9. −2x2 − 8x + 2 = 0

10. −2x2 − 12x− 2 = 0

11. 7x2 − 14x− 7 = 0

12. 12x2 − 24x + 12 = 0


1. −4x2 + 20x− 8 = 0

2. 5x2 + 25x + 15 = 0

3. 4x2 − 16x + 4 = 0

4. 10x2 − 30x + 15 = 0

5. 5x2 + 10x− 5 = 0

6. −6x2 + 18x + 6 = 0


7. −8x2 − 24x + 4 = 0

8. 4x2 + 24x− 4 = 0

9. −15x2 + 30x− 5 = 0

10. 7x2 + 14x− 7 = 0

11. −3x2 + 18x + 6 = 0

12. −6x2 + 6x + 3 = 0


1. 2x2 + 10x + 6 = 0

2. 6x2 + 24x− 6 = 0

3. 4x2 − 24x− 4 = 0

4. 8x2 + 16x + 4 = 0

5. −4x2 − 8x + 4 = 0

6. 7x2 − 35x− 7 = 0


7. 4x2 + 24x + 8 = 0

8. −3x2 − 12x + 6 = 0

9. 6x2 − 12x + 6 = 0

10. −3x2 + 9x− 3 = 0

11. 6x2 − 21x + 6 = 0

12. −3x2 − 18x + 9 = 0


1. −7x2 + 42x− 7 = 0

2. −4x2 + 8x + 8 = 0

3. −10x2 − 40x− 10 = 0

4. 5x2 − 10x− 5 = 0

5. 4x2 + 16x− 4 = 0

6. 10x2 − 30x− 10 = 0


7. 6x2 − 9x + 3 = 0

8. −7x2 − 28x + 7 = 0

9. −4x2 + 8x + 4 = 0

10. 21x2 + 42x + 7 = 0

11. −5x2 + 30x + 5 = 0

12. −4x2 − 24x + 4 = 0


1. 6x2 − 18x + 6 = 0

2. 6x2 − 36x− 6 = 0

3. −15x2 + 30x− 5 = 0

4. −18x2 − 36x− 18 = 0

5. 3x2 − 9x− 6 = 0

6. −7x2 − 28x− 7 = 0


7. 12x2 − 24x− 8 = 0

8. 4x2 + 8x + 4 = 0

9. −5x2 − 15x− 5 = 0

10. 3x2 + 12x + 3 = 0

11. 6x2 + 9x− 3 = 0

12. −3x2 − 18x + 3 = 0


1. −6x2 − 18x + 12 = 0

2. 6x2 − 24x− 6 = 0

3. 6x2 − 15x + 3 = 0

4. 6x2 + 24x− 18 = 0

5. 12x2 + 20x− 12 = 0

6. −4x2 − 20x + 4 = 0


7. 2x2 + 12x− 2 = 0

8. −12x2 + 30x− 6 = 0

9. 5x2 − 30x + 5 = 0

10. −12x2 + 16x− 4 = 0

11. 8x2 − 24x + 4 = 0

12. −4x2 − 6x + 2 = 0


1. 4x2 − 8x− 4 = 0

2. −4x2 − 10x + 2 = 0

3. −5x2 + 30x− 5 = 0

4. 2x2 + 10x− 2 = 0

5. −14x2 + 28x− 14 = 0

6. 5x2 + 30x− 10 = 0


7. −8x2 + 16x + 12 = 0

8. −12x2 + 30x + 6 = 0

9. −3x2 + 18x− 3 = 0

10. 14x2 + 28x− 7 = 0

11. 4x2 − 4x− 2 = 0

12. 3x2 − 6x− 6 = 0


1. −9x2 − 12x− 3 = 0

2. 2x2 − 8x− 2 = 0

3. 7x2 − 35x + 7 = 0

4. 5x2 − 10x− 5 = 0

5. −12x2 − 16x + 8 = 0

6. −21x2 + 42x− 7 = 0


7. −8x2 + 24x− 4 = 0

8. −8x2 − 20x− 8 = 0

9. 4x2 − 24x + 4 = 0

10. −7x2 − 35x + 14 = 0

11. 5x2 + 20x + 5 = 0

12. 7x2 + 42x + 7 = 0


1. 6x2 − 18x− 6 = 0

2. 3x2 + 24x + 9 = 0

3. 4x2 + 12x− 8 = 0

4. 8x2 + 16x− 8 = 0

5. 2x2 + 10x− 4 = 0

6. 4x2 + 8x− 8 = 0


7. −12x2 − 18x + 6 = 0

8. 3x2 + 18x + 9 = 0

9. 4x2 + 16x + 4 = 0

10. −6x2 + 36x− 6 = 0

11. −5x2 − 20x + 15 = 0

12. 14x2 − 28x + 7 = 0


1. 6x2 + 16x + 2 = 0

2. 4x2 + 24x + 4 = 0

3. −5x2 − 20x− 5 = 0

4. 7x2 − 21x− 7 = 0

5. 6x2 − 12x + 3 = 0

6. −8x2 + 32x− 8 = 0


7. 6x2 + 9x− 3 = 0

8. 7x2 − 35x + 7 = 0

9. −3x2 + 18x + 9 = 0

10. 5x2 + 30x + 5 = 0

11. −5x2 + 10x + 5 = 0

12. 9x2 − 18x + 9 = 0


1. 4x2 − 12x + 4 = 0

2. 6x2 − 24x + 6 = 0

3. −3x2 + 18x− 3 = 0

4. 5x2 − 10x− 5 = 0

5. 3x2 + 18x− 3 = 0

6. −2x2 + 10x− 6 = 0


7. −3x2 − 12x− 9 = 0

8. −6x2 − 30x− 12 = 0

9. 7x2 + 21x− 7 = 0

10. −6x2 − 12x− 6 = 0

11. 4x2 + 16x− 4 = 0

12. −21x2 − 14x + 14 = 0


1. −4x2 − 24x + 4 = 0

2. −12x2 + 16x + 12 = 0

3. 4x2 + 8x− 4 = 0

4. 6x2 − 42x + 18 = 0

5. −2x2 − 16x− 6 = 0

6. −6x2 − 15x− 3 = 0


7. −3x2 − 12x + 9 = 0

8. −12x2 + 36x− 6 = 0

9. 9x2 − 15x + 6 = 0

10. 7x2 + 21x− 14 = 0

11. 12x2 + 24x− 6 = 0

12. −7x2 − 14x− 7 = 0


1. 6x2 − 24x− 12 = 0

2. −21x2 + 42x− 7 = 0

3. −12x2 − 36x + 6 = 0

4. −3x2 − 6x + 9 = 0

5. 12x2 + 36x− 6 = 0

6. −3x2 + 18x− 3 = 0


7. −10x2 + 10x + 5 = 0

8. 6x2 + 12x− 6 = 0

9. −4x2 + 10x− 2 = 0

10. −12x2 + 28x− 8 = 0

11. 6x2 + 36x− 12 = 0

12. 14x2 − 28x + 7 = 0


1. 8x2 − 20x + 8 = 0

2. 6x2 − 30x + 6 = 0

3. 5x2 − 20x + 5 = 0

4. −5x2 − 25x + 5 = 0

5. −9x2 − 18x− 6 = 0

6. −14x2 − 35x− 14 = 0


7. 5x2 − 25x− 5 = 0

8. −6x2 − 12x− 6 = 0

9. 6x2 − 14x + 2 = 0

10. 7x2 − 35x + 7 = 0

11. −7x2 − 28x + 14 = 0

12. 6x2 + 12x− 6 = 0


1. 4x2 − 12x + 6 = 0

2. −5x2 + 10x− 5 = 0

3. 4x2 + 16x− 8 = 0

4. −3x2 + 9x + 3 = 0

5. 3x2 + 9x− 3 = 0

6. 3x2 − 18x + 6 = 0


7. 4x2 + 16x + 6 = 0

8. −8x2 + 8x + 4 = 0

9. 2x2 − 10x− 2 = 0

10. −2x2 + 12x− 2 = 0

11. −18x2 + 30x− 6 = 0

12. 5x2 + 25x + 10 = 0


1. −4x2 − 16x− 4 = 0

2. −5x2 − 10x− 5 = 0

3. −6x2 + 6x + 2 = 0

4. 3x2 − 21x + 9 = 0

5. −3x2 − 15x + 3 = 0

6. 4x2 − 4x− 2 = 0


7. 2x2 + 8x− 2 = 0

8. −3x2 + 12x + 6 = 0

9. −7x2 + 14x + 7 = 0

10. −4x2 + 12x + 4 = 0

11. −18x2 + 48x− 12 = 0

12. 3x2 + 9x− 9 = 0


1. −6x2 + 36x− 6 = 0

2. 10x2 − 20x + 5 = 0

3. −10x2 + 25x + 5 = 0

4. 2x2 + 6x + 4 = 0

5. −3x2 + 12x− 6 = 0

6. −6x2 − 15x− 3 = 0


7. −7x2 + 35x + 7 = 0

8. −10x2 − 15x + 5 = 0

9. −7x2 − 14x + 7 = 0

10. −6x2 + 24x− 9 = 0

11. 3x2 + 9x− 3 = 0

12. −6x2 − 30x− 12 = 0


1. −5x2 − 25x− 15 = 0

2. −6x2 + 18x + 3 = 0

3. 6x2 − 10x− 2 = 0

4. 3x2 + 12x + 3 = 0

5. −7x2 − 21x− 7 = 0

6. 6x2 + 12x− 6 = 0


7. −10x2 + 15x− 5 = 0

8. −3x2 − 9x + 3 = 0

9. −5x2 + 25x + 5 = 0

10. −3x2 + 12x− 3 = 0

11. 5x2 + 30x− 5 = 0

12. −21x2 − 14x + 7 = 0


1. −4x2 + 6x + 4 = 0

2. −7x2 + 21x− 7 = 0

3. 3x2 + 15x− 3 = 0

4. 12x2 + 20x− 4 = 0

5. −2x2 − 12x− 2 = 0

6. 9x2 − 12x + 3 = 0


7. −10x2 + 25x− 5 = 0

8. −2x2 − 12x + 4 = 0

9. 2x2 + 8x− 4 = 0

10. 21x2 + 42x− 21 = 0

11. 6x2 + 30x + 6 = 0

12. 6x2 − 8x + 2 = 0


1. −6x2 + 12x + 12 = 0

2. −4x2 − 8x− 4 = 0

3. 3x2 − 15x + 3 = 0

4. −2x2 − 6x− 2 = 0

5. 3x2 + 6x− 3 = 0

6. −15x2 − 30x− 15 = 0


7. −7x2 + 42x− 7 = 0

8. 7x2 + 14x + 7 = 0

9. −6x2 + 24x + 12 = 0

10. 2x2 − 4x + 2 = 0

11. 6x2 − 12x− 2 = 0

12. −2x2 − 8x− 2 = 0


1. −6x2 + 12x + 2 = 0

2. −5x2 + 25x− 5 = 0

3. −10x2 − 10x + 5 = 0

4. −8x2 − 12x− 4 = 0

5. −4x2 − 8x− 2 = 0

6. −10x2 − 15x + 15 = 0


7. −2x2 − 4x + 2 = 0

8. −4x2 + 16x + 4 = 0

9. 2x2 + 10x + 4 = 0

10. 3x2 − 12x− 3 = 0

11. 7x2 + 14x− 7 = 0

12. −18x2 + 18x + 6 = 0


1. 2x2 − 4x + 2 = 0

2. 5x2 − 35x + 15 = 0

3. −5x2 − 25x− 5 = 0

4. −2x2 + 8x + 6 = 0

5. −14x2 + 14x + 14 = 0

6. 5x2 − 20x + 5 = 0


7. −6x2 − 8x + 4 = 0

8. −8x2 + 24x− 4 = 0

9. −2x2 + 10x + 6 = 0

10. −5x2 + 20x + 10 = 0

11. 7x2 + 14x + 7 = 0

12. −3x2 + 9x− 6 = 0


1. 3x2 + 9x− 6 = 0

2. 7x2 − 21x− 7 = 0

3. 18x2 + 24x + 6 = 0

4. 10x2 + 20x− 5 = 0

5. −18x2 − 48x− 12 = 0

6. −10x2 + 25x + 5 = 0


7. −2x2 + 8x + 4 = 0

8. 5x2 + 30x− 5 = 0

9. −6x2 + 30x− 18 = 0

10. 2x2 + 8x− 2 = 0

11. 14x2 + 42x− 14 = 0

12. 6x2 − 30x− 6 = 0


1. −7x2 − 28x + 7 = 0

2. −4x2 + 24x− 8 = 0

3. −3x2 + 18x− 3 = 0

4. 18x2 − 36x + 6 = 0

5. 7x2 + 28x− 14 = 0

6. −6x2 + 36x + 6 = 0


7. −6x2 + 6x + 3 = 0

8. 6x2 − 18x + 6 = 0

9. −6x2 + 18x− 6 = 0

10. −14x2 − 42x + 7 = 0

11. −4x2 − 24x + 8 = 0

12. 4x2 + 20x + 8 = 0


1. −6x2 + 9x + 6 = 0

2. 8x2 − 24x− 4 = 0

3. 4x2 + 8x + 2 = 0

4. 21x2 + 42x + 14 = 0

5. 7x2 − 28x + 21 = 0

6. −3x2 + 6x + 3 = 0


7. 2x2 − 6x− 2 = 0

8. −7x2 − 14x− 7 = 0

9. −12x2 + 48x− 18 = 0

10. −14x2 + 21x + 7 = 0

11. 4x2 + 4x− 2 = 0

12. −3x2 + 9x− 6 = 0


1. 4x2 + 12x− 4 = 0

2. −5x2 + 10x− 5 = 0

3. 15x2 + 20x + 5 = 0

4. 8x2 + 24x− 12 = 0

5. 4x2 − 24x + 12 = 0

6. −6x2 + 30x− 18 = 0


7. 14x2 + 14x− 21 = 0

8. −12x2 − 18x + 18 = 0

9. −9x2 + 12x + 3 = 0

10. −12x2 + 30x + 6 = 0

11. 6x2 − 18x− 3 = 0

12. −6x2 − 12x− 6 = 0


1. 5x2 − 20x + 5 = 0

2. −10x2 − 30x + 5 = 0

3. 15x2 + 10x− 10 = 0

4. 7x2 − 21x− 7 = 0

5. 15x2 − 25x− 10 = 0

6. 6x2 − 36x− 6 = 0


7. −3x2 − 6x− 3 = 0

8. −3x2 − 18x + 3 = 0

9. −2x2 + 10x− 2 = 0

10. 3x2 + 6x− 6 = 0

11. 2x2 + 4x− 2 = 0

12. 5x2 − 20x− 5 = 0


1. −7x2 − 21x− 14 = 0

2. −7x2 + 28x− 7 = 0

3. −2x2 + 10x− 4 = 0

4. −6x2 − 18x− 9 = 0

5. 5x2 + 25x− 5 = 0

6. 3x2 − 12x + 9 = 0


7. 3x2 − 24x + 6 = 0

8. −4x2 + 12x + 4 = 0

9. 6x2 − 4x− 2 = 0

10. −7x2 − 14x + 7 = 0

11. 8x2 − 24x + 8 = 0

12. 6x2 + 30x− 12 = 0


1. −6x2 + 24x + 12 = 0

2. −3x2 + 9x + 6 = 0

3. 2x2 + 8x + 2 = 0

4. −14x2 − 42x + 7 = 0

5. −2x2 − 4x + 2 = 0

6. −6x2 − 6x + 4 = 0


7. 6x2 − 36x + 12 = 0

8. 6x2 − 15x + 6 = 0

9. −4x2 + 12x− 4 = 0

10. −7x2 + 42x + 7 = 0

11. −6x2 + 12x + 6 = 0

12. 7x2 − 14x− 7 = 0


1. 5x2 − 10x− 10 = 0

2. −12x2 − 30x− 18 = 0

3. −5x2 − 10x + 10 = 0

4. 4x2 − 16x + 8 = 0

5. −10x2 − 20x− 10 = 0

6. −7x2 + 42x− 21 = 0


7. 8x2 + 20x + 4 = 0

8. 4x2 + 6x− 4 = 0

9. −2x2 + 10x− 6 = 0

10. 10x2 + 20x− 10 = 0

11. 5x2 − 10x + 5 = 0

12. 4x2 + 8x− 4 = 0


1. −7x2 + 21x + 14 = 0

2. −21x2 + 28x + 7 = 0

3. 6x2 + 8x + 2 = 0

4. 5x2 − 15x− 5 = 0

5. −21x2 + 35x− 7 = 0

6. −10x2 − 20x− 10 = 0


7. 6x2 − 24x− 6 = 0

8. −10x2 − 25x + 10 = 0

9. 14x2 + 28x− 7 = 0

10. 3x2 − 12x + 6 = 0

11. −12x2 − 36x + 6 = 0

12. 6x2 + 18x− 6 = 0


1. 5x2 + 30x− 5 = 0

2. −3x2 − 18x + 3 = 0

3. −7x2 − 14x + 21 = 0

4. 3x2 − 12x− 3 = 0

5. −4x2 − 8x− 2 = 0

6. −8x2 − 20x− 12 = 0


7. 7x2 − 14x + 7 = 0

8. −7x2 − 35x− 14 = 0

9. 3x2 − 6x− 3 = 0

10. 5x2 + 30x + 5 = 0

11. 18x2 + 36x + 6 = 0

12. 8x2 + 16x− 4 = 0


1. 8x2 − 24x + 8 = 0

2. −6x2 − 18x + 3 = 0

3. 4x2 + 12x + 2 = 0

4. −3x2 + 12x + 3 = 0

5. 5x2 + 20x− 5 = 0

6. 4x2 − 16x + 4 = 0


7. −4x2 + 16x− 4 = 0

8. −2x2 − 6x− 2 = 0

9. −7x2 − 21x− 7 = 0

10. 5x2 − 20x− 15 = 0

11. 6x2 − 12x− 6 = 0

12. 6x2 + 24x− 12 = 0


1. −2x2 − 10x + 2 = 0

2. 2x2 + 10x− 2 = 0

3. 4x2 + 16x + 4 = 0

4. 4x2 − 24x− 4 = 0

5. 18x2 + 36x + 18 = 0

6. −5x2 − 15x− 5 = 0


7. 14x2 − 21x− 7 = 0

8. 14x2 + 21x− 14 = 0

9. −6x2 − 24x− 18 = 0

10. 2x2 + 8x + 2 = 0

11. 6x2 − 12x− 12 = 0

12. 6x2 + 30x− 6 = 0


1. 4x2 − 24x + 4 = 0

2. −14x2 + 28x + 21 = 0

3. 3x2 + 21x + 6 = 0

4. 7x2 + 14x− 7 = 0

5. 3x2 − 9x− 3 = 0

6. −4x2 − 20x + 8 = 0


7. −6x2 + 24x− 18 = 0

8. −7x2 + 21x + 7 = 0

9. −3x2 + 15x− 3 = 0

10. −2x2 − 10x + 2 = 0

11. −5x2 − 20x + 5 = 0

12. −5x2 − 20x− 10 = 0


1. −4x2 + 16x + 4 = 0

2. 7x2 − 21x− 7 = 0

3. 2x2 + 14x + 4 = 0

4. −4x2 + 10x− 2 = 0

5. −7x2 + 42x + 7 = 0

6. −2x2 + 12x + 4 = 0


7. −6x2 + 24x− 12 = 0

8. 3x2 + 6x− 3 = 0

9. 4x2 − 8x + 2 = 0

10. 10x2 − 30x− 5 = 0

11. 2x2 − 10x− 4 = 0

12. −6x2 − 18x + 6 = 0


1. 21x2 + 42x− 7 = 0

2. −3x2 + 15x + 3 = 0

3. −3x2 + 9x− 3 = 0

4. 2x2 − 6x + 2 = 0

5. −7x2 − 42x− 14 = 0

6. −4x2 − 12x− 2 = 0


7. 5x2 + 10x− 5 = 0

8. 2x2 − 12x− 4 = 0

9. −5x2 − 30x− 15 = 0

10. 21x2 + 42x− 7 = 0

11. 14x2 − 42x− 21 = 0

12. 14x2 − 42x + 14 = 0


1. 10x2 + 25x + 5 = 0

2. 18x2 − 36x + 18 = 0

3. 7x2 + 28x + 7 = 0

4. −2x2 + 10x− 4 = 0

5. 6x2 + 6x− 3 = 0

6. 8x2 − 20x + 4 = 0


7. 6x2 + 36x− 18 = 0

8. 5x2 + 10x− 10 = 0

9. −18x2 − 30x + 12 = 0

10. 5x2 − 10x + 5 = 0

11. 21x2 − 35x− 14 = 0

12. 6x2 − 18x + 6 = 0


1. 3x2 − 18x− 6 = 0

2. 2x2 − 10x + 2 = 0

3. −5x2 − 20x− 10 = 0

4. 12x2 − 24x− 4 = 0

5. −6x2 − 24x− 18 = 0

6. −4x2 − 12x− 8 = 0


7. −6x2 − 12x + 6 = 0

8. 7x2 + 28x− 7 = 0

9. 14x2 − 42x + 7 = 0

10. 5x2 − 25x + 10 = 0

11. 14x2 − 35x− 21 = 0

12. 6x2 + 36x + 18 = 0


1. 6x2 − 30x− 12 = 0

2. −3x2 − 15x− 3 = 0

3. −5x2 − 10x + 5 = 0

4. −6x2 + 6x + 6 = 0

5. −3x2 + 15x + 3 = 0

6. 7x2 + 28x− 14 = 0


7. 12x2 − 16x + 4 = 0

8. 6x2 − 15x + 9 = 0

9. 3x2 − 15x− 9 = 0

10. −3x2 + 6x + 3 = 0

11. 12x2 + 20x + 4 = 0

12. 12x2 + 28x + 4 = 0


1. −6x2 − 12x + 18 = 0

2. −21x2 + 42x− 14 = 0

3. 6x2 − 15x− 3 = 0

4. 5x2 − 10x− 10 = 0

5. 6x2 − 8x + 2 = 0

6. 4x2 + 24x− 4 = 0


7. 5x2 + 20x− 15 = 0

8. −18x2 + 36x + 12 = 0

9. 5x2 − 30x− 10 = 0

10. 10x2 − 20x + 5 = 0

11. 4x2 − 16x− 8 = 0

12. 2x2 − 8x + 2 = 0


1. 5x2 − 15x− 5 = 0

2. 6x2 − 24x− 6 = 0

3. 12x2 − 16x + 4 = 0

4. −6x2 + 6x + 2 = 0

5. −6x2 − 12x− 3 = 0

6. −7x2 + 28x + 7 = 0


7. −3x2 − 15x + 3 = 0

8. −2x2 + 4x− 2 = 0

9. −18x2 − 36x + 12 = 0

10. −8x2 + 16x− 8 = 0

11. −2x2 − 6x− 2 = 0

12. −8x2 + 32x− 8 = 0


1. 5x2 − 20x + 5 = 0

2. 6x2 + 36x− 6 = 0

3. −10x2 − 25x + 5 = 0

4. 2x2 − 4x + 2 = 0

5. 12x2 + 24x− 12 = 0

6. 6x2 − 10x− 4 = 0


7. −3x2 + 15x− 3 = 0

8. −2x2 − 12x + 6 = 0

9. −6x2 + 12x− 6 = 0

10. −2x2 − 8x + 2 = 0

11. 6x2 − 36x− 6 = 0

12. 4x2 + 4x− 4 = 0


1. 6x2 − 24x + 6 = 0

2. 5x2 − 25x + 5 = 0

3. −3x2 − 18x− 9 = 0

4. −14x2 + 28x + 14 = 0

5. 8x2 + 12x + 4 = 0

6. 3x2 − 12x− 3 = 0


7. 2x2 − 12x + 2 = 0

8. 5x2 − 25x− 15 = 0

9. −8x2 − 24x + 4 = 0

10. 10x2 + 20x + 5 = 0

11. −4x2 − 20x− 4 = 0

12. −6x2 − 18x + 9 = 0


1. 21x2 + 42x− 21 = 0

2. 3x2 − 18x + 3 = 0

3. 5x2 + 25x− 15 = 0

4. 7x2 + 14x− 7 = 0

5. 6x2 − 21x + 3 = 0

6. −4x2 + 24x + 4 = 0


7. 14x2 + 35x + 7 = 0

8. 9x2 + 15x + 3 = 0

9. −6x2 − 36x− 12 = 0

10. −4x2 − 24x− 8 = 0

11. −14x2 − 42x− 14 = 0

12. 6x2 − 24x + 12 = 0


1. −7x2 − 21x− 7 = 0

2. 5x2 − 15x + 10 = 0

3. −2x2 − 6x + 2 = 0

4. 5x2 + 25x− 5 = 0

5. −2x2 − 4x + 4 = 0

6. −14x2 − 35x + 7 = 0


7. −6x2 + 12x− 6 = 0

8. −4x2 + 16x− 8 = 0

9. −3x2 + 12x + 3 = 0

10. −6x2 − 12x− 6 = 0

11. −14x2 − 42x− 7 = 0

12. 12x2 − 24x + 4 = 0


1. −8x2 − 24x + 8 = 0

2. 7x2 − 14x− 14 = 0

3. −4x2 + 24x− 8 = 0

4. 3x2 + 9x + 3 = 0

5. −7x2 + 14x + 21 = 0

6. −2x2 − 8x− 2 = 0


7. 7x2 + 42x + 7 = 0

8. 3x2 + 18x + 3 = 0

9. 9x2 + 9x− 3 = 0

10. 7x2 + 28x + 14 = 0

11. −10x2 − 35x− 10 = 0

12. −3x2 + 12x− 3 = 0


1. −12x2 − 30x− 6 = 0

2. 3x2 + 9x + 6 = 0

3. −2x2 + 6x− 4 = 0

4. 5x2 + 15x− 5 = 0

5. −6x2 − 24x + 6 = 0

6. 3x2 − 24x + 9 = 0


7. 7x2 − 14x + 7 = 0

8. 3x2 − 15x + 3 = 0

9. −3x2 + 18x− 9 = 0

10. 6x2 − 30x− 6 = 0

11. −6x2 + 24x− 6 = 0

12. −3x2 + 12x + 6 = 0


1. −4x2 + 10x− 2 = 0

2. 6x2 − 12x− 3 = 0

3. 7x2 − 56x + 14 = 0

4. −5x2 − 20x− 5 = 0

5. 4x2 + 8x + 4 = 0

6. 10x2 − 30x + 5 = 0


7. 6x2 + 18x− 6 = 0

8. 4x2 + 16x + 2 = 0

9. 2x2 + 12x− 4 = 0

10. 3x2 − 6x− 6 = 0

11. 7x2 + 28x− 7 = 0

12. −6x2 − 24x− 12 = 0


1. −6x2 + 12x + 3 = 0

2. 12x2 + 12x− 4 = 0

3. −14x2 + 35x + 7 = 0

4. 2x2 + 12x− 6 = 0

5. 6x2 + 9x + 3 = 0

6. 7x2 − 28x + 7 = 0


7. 2x2 − 8x + 4 = 0

8. −8x2 − 12x + 4 = 0

9. −12x2 − 24x− 6 = 0

10. 3x2 − 12x + 3 = 0

11. −15x2 − 30x + 10 = 0

12. 14x2 − 42x + 7 = 0


1. −3x2 − 12x + 6 = 0

2. −2x2 − 12x− 2 = 0

3. 2x2 − 10x + 6 = 0

4. −5x2 − 30x + 5 = 0

5. 2x2 − 8x + 2 = 0

6. 3x2 + 18x− 3 = 0


7. 10x2 − 30x + 10 = 0

8. −5x2 + 15x− 10 = 0

9. −4x2 + 24x− 8 = 0

10. 4x2 − 8x− 8 = 0

11. 5x2 + 25x + 5 = 0

12. 10x2 − 25x + 5 = 0


1. −6x2 + 24x + 12 = 0

2. −5x2 + 25x− 5 = 0

3. −6x2 − 12x− 6 = 0

4. −10x2 − 25x− 15 = 0

5. −7x2 − 35x− 14 = 0

6. 3x2 − 24x + 6 = 0


7. −2x2 − 8x− 2 = 0

8. 12x2 − 30x + 6 = 0

9. −6x2 + 18x + 12 = 0

10. −4x2 − 24x + 4 = 0

11. 6x2 − 16x + 4 = 0

12. 14x2 − 35x + 7 = 0


1. −3x2 − 15x + 6 = 0

2. −5x2 − 15x− 5 = 0

3. 21x2 − 49x + 7 = 0

4. −3x2 − 9x− 3 = 0

5. 5x2 − 15x− 5 = 0

6. 3x2 − 6x + 3 = 0


7. 4x2 + 16x + 4 = 0

8. 4x2 − 12x− 4 = 0

9. −10x2 − 30x + 5 = 0

10. −7x2 + 35x + 7 = 0

11. −6x2 + 15x + 6 = 0

12. −5x2 + 25x− 15 = 0


1. −2x2 + 12x− 4 = 0

2. 2x2 − 8x + 6 = 0

3. −8x2 + 12x− 4 = 0

4. −6x2 − 15x + 3 = 0

5. 2x2 − 8x− 2 = 0

6. 7x2 − 28x + 21 = 0


7. −2x2 − 10x− 2 = 0

8. 4x2 + 10x + 2 = 0

9. 18x2 + 12x− 6 = 0

10. 21x2 + 49x + 21 = 0

11. −9x2 + 12x− 3 = 0

12. 10x2 + 15x− 10 = 0


1. −6x2 − 12x− 6 = 0

2. −15x2 + 30x− 15 = 0

3. −6x2 − 36x− 6 = 0

4. −7x2 + 21x− 7 = 0

5. 2x2 + 10x− 4 = 0

6. 12x2 + 18x + 6 = 0


7. 5x2 + 30x + 5 = 0

8. −4x2 + 4x + 2 = 0

9. −6x2 + 15x− 3 = 0

10. −6x2 − 9x− 3 = 0

11. −8x2 − 16x− 4 = 0

12. 2x2 − 6x + 2 = 0

Document No. QER8491001

1. 2 and 12. −5±

√37

2

3. 14

and −114

4. −3±√5

2

5. 0 and −52

6. 4±√20

2

7. 6±√24

6

8. 4±√32

4

9. 6±√48

6

10. −6±√32

2

11. 6±√28

4

12. 32

and 1


1. −3±√13

2

2. 5±√13

2

3. 94

and 14

4. −6±√40

2

5. 12

and −72

6. −2±√12

2

7. −12

and −92

8. -19. 5±

√29

2

10. −2±√20

4

11. −6±√32

2

12. −5±√29

2


1. 0 and 52

2. −6±√28

2

3. −5±√13

2

4. 6±√40

2

5. 2 and 13

6. −72

and 12

7. −4±√28

6

8. −3±√13

2

9. 92

and 12

10. −13

and −1

11. −6±√24

2

12. −12

and −92


1. −3±√45

6

2. −2±√28

6

3. −1 and −34. −4±

√12

2

5. 0 and −36. −6±

√32

2

7. −3 and 08. −6±

√48

2

9. −6±√28

2

10. -111. 5±

√29

2

12. −1 and −23


1. 0 and −52

2. −2±√8

2

3. 2±√12

4

4. 8±√40

4

5. 12

and 1

6. 5±√29

2

7. −3±√13

2

8. 4±√20

2

9. −5±√13

6

10. −4±√20

2

11. 4±√24

4

12. −4±√20

2


1. −3±√13

2

2. 4±√12

2

3. 5 and 04. 0 and 35. 6±

√28

2

6. 6±√32

2

7. −2±√12

4

8. −5±√29

2

9. 0 and −310. −9

2and −1

2

11. −4±√28

2

12. 1 and −3


1. 12

and −72

2. −6±√32

2

3. −1 and −24. 3 and 15. 2±

√12

2

6. 0 and 52

7. 132

and 12

8. −6±√32

2

9. −4±√20

2

10. 6±√28

2

11. −4±√28

2

12. 4±√28

2


1. −3 and −12

2. 3 and 03. 2±

√12

2

4. 0 and 52

5. 2±√8

2

6. 17. −4±

√20

2

8. −5±√29

2

9. 6±√40

2

10. −2±√12

2

11. −3±√5

2

12. −6±√28

2


1. 1 and 32. 13. −1

2and −1

4. −76

and 16

5. 2 and 16. -17. 3±

√13

2

8. −5±√29

2

9. −2±√12

2

10. 6±√40

2

11. −2±√8

2

12. −4±√24

2


1. −3±√5

2

2. 72

and −12

3. −5±√29

2

4. −92

and −12

5. 13

and 26. -17. −5 and 08. 6±

√32

2

9. 6±√40

2

10. 5±√37

6

11. −4±√8

2

12. −14

and 74


1. −6±√32

2

2. −1 and 13

3. −6±√24

2

4. 6 and 05. 1

3and −4

3

6. 2±√12

2

7. −5±√29

2

8. -19. −6±

√32

2

10. 5±√37

2

11. −1 and −312. 2±

√20

4


1. −6±√48

6

2. −6±√40

2

3. 6±√24

6

4. −5±√29

2

5. −4±√20

2

6. −1 and −12

7. −2 and −18. 6±

√32

2

9. 3 and −110. −6±

√28

4

11. −4±√24

2

12. 6±√48

6


1. −2 and −12. 0 and 33. −2±

√20

4

4. 4±√40

4

5. −2±√12

4

6. 3±√5

2

7. 6±√52

4

8. −94

and −14

9. 6±√52

4

10. −4±√24

2

11. 6±√28

4

12. 6±√28

2


1. 14

and −114

2. 6±√24

2

3. 3±√13

2

4. −2±√28

6

5. 0 and −66. 3 and 07. −4±

√20

2

8. 5±√29

2

9. −6 and 010. −1

2and −9

2

11. 4±√8

4

12. −4±√8

4


1. 12

and 92

2. 4±√20

2

3. 12

and 2

4. 5±√37

6

5. 12

and 36. 17. 4±

√12

2

8. −4±√24

4

9. −6±√32

2

10. −4±√32

4

11. 3±√13

2

12. −6±√32

2


1. −14

and 74

2. −6±√52

4

3. 6±√24

6

4. −12

and −1

5. 4±√20

2

6. −5±√29

2

7. −6±√48

2

8. −12

and −92

9. −6±√32

2

10. 6±√24

6

11. −14

and 74

12. −12

and −92


1. 92

and 12

2. −12

and −23. -14. −6±

√48

6

5. −12

and 72

6. −6±√48

2

7. 6±√32

2

8. 3±√13

2

9. −12

and −2

10. 6±√32

2

11. 92

and 12

12. 1 and 3


1. 8±√40

6

2. −1 and −33. 1

6and −7

6

4. −6±√28

2

5. 5 and 06. −4±

√28

2

7. 4±√28

2

8. 5±√29

2

9. −4±√12

2

10. 76

and −16

11. −4±√32

4

12. −5±√29

2


1. −6±√40

2

2. −4±√8

2

3. 2±√28

4

4. −6±√12

4

5. −2±√20

4

6. −6±√32

2

7. −4±√20

2

8. 94

and 14

9. −6±√48

2

10. −3 and −111. −7

2and 1

2

12. −4±√20

2


1. 92

and 12

2. −14

and 74

3. −6±√32

2

4. 4±√8

4

5. −4±√28

6

6. −4±√20

2

7. 5±√13

6

8. −5±√29

2

9. 5±√37

2

10. −2±√8

2

11. 2±√12

2

12. 5±√29

2


1. 5±√13

2

2. 5±√37

2

3. 12

and 1

4. −4±√28

2

5. −2±√8

2

6. 6±√40

2

7. −94

and −14

8. 1 and 13

9. 4±√12

2

10. 4±√24

4

11. −2±√8

2

12. 12

and −72


1. −4±√20

2

2. −6±√32

2

3. -14. -15. −6±

√24

2

6. 6±√28

2

7. 2±√12

2

8. −5±√37

6

9. −92

and −12

10. 72

and −12

11. 112. 2±

√12

4

Document No. QER84910231. −6±

√40

2

2. −4±√8

4

3. 5±√29

2

4. 3±√5

2

5. −14

and 114

6. 1 and 32

7. −2±√40

6

8. −12

and −1

9. 6±√32

2

10. 0 and 52

11. −5±√29

2

12. −1 and −2

Document No. QER84910241. 1

2and 9

2

2. −6±√32

2

3. −6±√60

4

4. 3±√13

2

5. 16. −1 and −2

3

7. −3±√5

2

8. 13

and 19. 1

4and −11

4

10. −16

and 76

11. −14

and −94

12. 0 and −6


√8

2

2. −4±√24

4

3. −6±√32

2

4. −6±√32

2

5. 13

and 1

6. 4±√12

2

7. 1

8. 3 and 19. 3±

√5

2

10. 0 and −611. −4±

√8

2

12. −6±√32

2


1. −4±√8

2

2. 2±√12

4

3. −2 and 12

4. 0 and −55. −6±

√24

2

6. −4±√8

2

7. −1 and −23

8. −5±√37

2

9. 4±√20

2

10. −12

and −92

11. −2±√8

2

12. −3±√13

2


1. 0 and −52. −5±

√13

2

3. −1 and −34. 2±

√12

4

5. 3±√45

6

6. 132

and 12

7. 0 and −58. −3±

√13

2

9. 4±√8

2

10. −2±√8

2

11. 5±√13

6

12. −6 and 0


1. −4±√24

4

2. −6±√32

2

3. 3±√5

2

4. 4±√12

2

5. 2±√8

2

6. 5±√13

6

7. 5±√29

2

8. −6±√40

2

9. 5±√29

2

10. −2±√8

2

11. −2±√20

4

12. 4±√12

2


1. −6 and 02. 4±

√28

2

3. 4±√8

2

4. 92

and 12

5. 3 and 12

6. 92

and 12

7. −2±√8

2

8. 14

and −74

9. −4±√20

2

10. 6±√32

2

11. 6±√28

2

12. −6±√48

6


1. 0 and −62. −4±

√28

6

3. −5±√37

6

4. −5±√37

6

5. −2±√8

2

6. −6±√28

4

7. 18. −6±

√32

2

9. 5±√61

6

10. 5±√37

2

11. 3±√13

2

12. −12

and 72


1. −6±√24

2

2. -13. −2±

√12

4

4. 52

and 0

5. 2±√8

2

6. 5 and 07. 6 and 08. −4±

√32

4

9. -1

10. 4±√12

2

11. −5±√29

2

12. −13

and 1


1. 2±√8

2

2. −4±√20

2

3. 5±√29

2

4. −6±√60

6

5. −3±√13

2

6. −4±√24

4

7. 18. −1

2and −9

2

9. 5±√29

2

10. 72

and −12

11. 12

and 92

12. -1


1. −4±√8

4

2. −4±√8

4

3. 14. −4±

√12

2

5. 16. −1

2and −9

2

7. −6±√24

6

8. 6±√12

6

9. 0 and −510. 3±

√13

2

11. −4±√20

2

12. 1


1. 0 and 62. −5 and 03. −3±

√13

2

4. −4±√28

6

5. 52

and 06. -17. −6±

√28

4

8. −4±√24

2

9. −4±√8

4

10. 74

and −14

11. −14

and 74

12. −5±√13

6


1. −6 and 02. 1

4and −7

4

3. 1 and 12

4. −12

and −92

5. −13

and 16. 17. −1 and −38. −3 and 19. −1

6and 7

6

10. −14

and 74

11. −12

and −92

12. −76

and 16


1. 0 and 52

2. 13. 14. 2±

√28

6

5. 3±√13

2

6. 12

and 92

7. −6±√40

2

8. 12

and 39. 5

2and 0

10. −6±√28

2

11. −4±√28

6

12. 3±√5

2


1. -12. 3 and 13. -14. 6±

√40

2

5. −76

and 16

6. 17. 6±

√60

4

8. 4±√12

2

9. 4±√20

2

10. −6±√28

4

11. −4±√12

2

12. −12

and −92


1. −8±√48

4

2. 5±√13

2

3. −4±√12

2

4. −5±√29

2

5. −2±√12

4

6. −2±√12

2

7. 6±√60

6

8. −14

and 114

9. −5±√13

6

10. −14

and −94

11. 14

and −74

12. −23

and −1


1. 5±√37

2

2. −6±√48

2

3. 12

and 92

4. −5±√29

2

5. 4±√8

4

6. 4±√24

4

7. −4±√12

2

8. 19. −3±

√5

2

10. 154

and 14

11. −4±√20

2

12. −12

and −1


1. 4±√24

4

2. 2±√40

6

3. 94

and 14

4. −6±√32

2

5. −5 and 06. −2±

√40

6

7. −6±√24

2

8. 6±√32

2

9. 4±√24

2

10. −6±√20

4

11. −2±√12

2

12. 14

and −114


1. 5±√37

2

2. 16

and −76

3. −3±√13

2

4. −6±√72

6

5. 5±√29

2

6. 4±√20

2

7. 6±√28

2

8. −2 and −13

9. 110. 111. −3±

√13

2

12. −4±√40

4


2and −1

2

2. 12

and 92

3. 0 and −64. −3±

√5

2

5. −4±√20

2

6. 5±√13

2

7. −4±√20

2

8. 3 and 09. −1

2and 7

2

10. 6 and 011. −6±

√40

2

12. 4±√8

4

Document No. QER84910431. 3±

√45

6

2. −2 and −12

3. −6±√28

2

4. 6±√32

2

5. −4±√28

6

6. −114

and 14

7. −3±√13

2

8. −114

and 14

9. −1 and −210. −4±

√12

2

11. 3±√5

2

12. 3 and −1

Document No. QER84910441. -12. 3±

√5

2

3. −1 and −23

4. −6±√24

6

5. 4±√28

2

6. −1 and −13

7. 12

and 92

8. −2±√12

2

9. −14

and −94

10. −3±√5

2

11. −6±√32

2

12. −6±√40

2


1. −76

and 16

2. 6±√12

4

3. −6±√32

2

4. 5±√13

6

5. −92

and −12

6. −2±√20

4

7. 6±√32

2

8. 4±√12

2

9. 2±√28

4

10. -111. −1 and 1

3

12. 6±√28

4


1. 12

and 2

2. −6±√28

4

3. 6 and 04. −4±

√20

2

5. 6±√48

2

6. 4±√28

6

7. −114

and 14

8. −6±√32

2

9. −4±√20

2

10. −6±√32

2

11. 2±√8

2

12. 1


1. 12

and 92

2. −5±√13

2

3. 4±√12

2

4. 6±√12

4

5. −2±√8

2

6. 3±√13

2

7. −3 and 08. −6±

√40

2

9. 6±√24

6

10. −2±√8

2

11. 0 and 612. 2±

√12

4


1. −5±√13

2

2. −4±√20

2

3. 6±√40

2

4. −4±√8

4

5. −2±√8

2

6. 5±√29

2

7. −6±√28

2

8. −4±√24

2

9. 110. 3±

√5

2

11. 3 and 12

12. −6±√48

2


1. 6±√32

2

2. 2±√12

2

3. −8±√48

4

4. 2±√8

2

5. −4±√20

2

6. 6±√52

4

7. 1 and 12

8. −4±√20

2

9. 2±√8

2

10. −6±√24

6

11. 6±√40

2

12. −6±√40

2


1. 3±√5

2

2. 6±√40

2

3. 6±√24

6

4. -15. 7

2and −1

2

6. −4±√12

2

7. 6±√60

6

8. -19. −3±

√5

2

10. −4±√12

2

11. 14

and −74

12. −6±√40

2


1. −72

and 12

2. 4±√20

2

3. 94

and 14

4. −4±√28

2

5. −5±√61

6

6. −5±√29

2

7. −6±√40

2

8. 14

and 94

9. 6±√32

2

10. 13

and 1

11. 6±√28

4

12. −74

and 14


1. 2±√8

2

2. −52

and 0

3. 6±√32

2

4. −5±√29

2

5. 16. 0 and −67. 4±

√40

4

8. 0 and 52

9. 6±√32

2

10. −4±√24

4

11. 2±√12

4

12. 2±√12

2


1. −1 and −13

2. 4±√20

2

3. 92

and 12

4. 2±√8

2

5. −4±√40

6

6. 6±√24

6

7. 6±√28

4

8. −2 and −12

9. 6±√32

2

10. −5 and 011. −4±

√12

2

12. −6±√32

2


1. 6±√52

4

2. −8±√52

2

3. 12

and −72

4. −4±√32

4

5. 0 and −56. −2±

√12

2

7. −74

and 14

8. −6±√24

2

9. −4±√12

2

10. 6±√32

2

11. −4±√28

2

12. 4±√8

4


1. −8±√52

6

2. −6±√32

2

3. −4±√12

2

4. 3±√13

2

5. 4±√8

4

6. 8±√48

4

7. 14

and −74

8. 92

and 12

9. 6±√48

2

10. −6±√32

2

11. 2±√8

2

12. 1


1. 3±√5

2

2. 4±√12

2

3. 6±√32

2

4. 2±√8

2

5. −6±√40

2

6. 5±√13

2

7. −3 and −18. −9

2and −1

2

9. −3±√13

2

10. -111. −4±

√20

2

12. −2±√28

6


√40

2

2. 4±√52

6

3. −2±√8

2

4. 7±√37

2

5. −8±√52

2

6. −94

and −14

7. −4±√28

2

8. 6±√28

4

9. 1 and 23

10. 12

and −72

11. −4±√24

4

12. -1


√24

2

2. 6±√24

6

3. −3 and 04. −3 and 15. 0 and −36. 6±

√32

2

7. 2±√12

4

8. −2±√8

2

9. 14

and 94

10. 13

and 211. 0 and −612. 4±

√8

4

Document No. QER84910591. 2 and 1

2

2. 92

and 12

3. 4±√12

2

4. −5±√29

2

5. −6±√12

6

6. −2 and −12

7. 5±√29

2

8. -19. 7±

√37

6

10. 92

and 12

11. −4±√24

2

12. −2±√8

2


1. 6±√12

4

2. 13. −4±

√24

2

4. 3±√13

2

5. −3±√13

2

6. 6±√28

2

7. −8±√40

4

8. 2±√12

4

9. 5±√29

2

10. 6±√32

2

11. 5±√13

6

12. −12

and −92


1. −4±√12

2

2. -13. −1

6and 7

6

4. 7±√37

2

5. −5±√29

2

6. 2±√12

4

7. −4±√20

2

8. 4±√24

2

9. 2±√8

2

10. 3±√13

2

11. 8±√40

6

12. 12

and −72


1. 6±√32

2

2. 4±√8

4

3. 0 and 52

4. −1 and −25. 4±

√8

2

6. −94

and −14

7. 5±√29

2

8. −74

and 14

9. −2±√8

2

10. 8±√40

4

11. −3±√13

2

12. −92

and −12


1. −5±√13

2

2. 0 and 33. 5±

√37

6

4. −4±√12

2

5. −3±√5

2

6. −2±√8

2

7. 12

and 1

8. −3±√13

2

9. 5±√29

2

10. 4±√12

2

11. −6±√40

2

12. −1 and 13


1. −12

and 2

2. 3±√5

2

3. −5±√29

2

4. −5±√37

6

5. −6±√32

2

6. 1 and 13

7. 14

and 94

8. −6 and 09. −4±

√24

2

10. −6±√72

6

11. −12

and −92

12. 1 and 13


1. 2±√12

2

2. -13. 9

2and 1

2

4. −3±√5

2

5. −2±√8

2

6. -17. 6±

√32

2

8. -1

9. 4±√24

2

10. 111. 6±

√48

6

12. −4±√12

2


1. 6±√48

6

2. 12

and 92

3. −2±√12

4

4. −1 and −12

5. −4±√8

4

6. −2 and 12

7. −2±√8

2

8. 4±√20

2

9. −12

and −92

10. 4±√20

2

11. −2±√8

2

12. −16

and 76


1. 12. 7±

√37

2

3. −92

and −12

4. 4±√28

2

5. 2±√20

4

6. 4±√12

2

7. −4±√40

6

8. 6±√28

4

9. 5±√37

2

10. 4±√24

2

11. -112. 1 and 2


1. 12

and −72

2. 3±√13

2

3. −13

and −1

4. −4±√24

4

5. −8±√40

6

6. 0 and 52

7. 4±√24

2

8. −6±√40

2

9. 5±√13

2

10. −4±√20

2

11. −6±√52

4

12. 5±√29

2


1. −4±√20

2

2. 6±√28

2

3. 6±√32

2

4. 6±√24

6

5. −4±√24

2

6. 6±√40

2

7. 2±√12

4

8. 6±√20

4

9. 3±√5

2

10. −3 and 011. −6 and 012. −1

2and −9

2


1. −12

and 22. 3 and 03. −4±

√8

4

4. −6±√12

6

5. 3 and 16. 2±

√8

2

7. 3±√13

2

8. -19. 8±

√40

4

10. −14

and 74

11. −2±√12

4

12. 1 and 2


1. −3±√13

2

2. 13. −1

3and −1

4. −6±√60

4

5. 6±√24

2

6. 5±√13

2

7. −2±√28

4

8. −2 and 12

9. 4±√28

6

10. 0 and 52

11. 3 and 012. -1


√12

2

2. −3 and 03. −2±

√28

6

4. 3±√13

2

5. 2 and −13

6. 6±√40

2

7. -18. −6±

√40

2

9. 12

and 92

10. −2±√12

2

11. −2±√8

2

12. 4±√20

2

Document No. QER84910731. −2 and −12. 4±

√12

2

3. 12

and 92

4. −6±√12

4

5. −5±√29

2

6. 3 and 17. 15

2and 1

2

8. 3±√13

2

9. 1 and −13

10. −2±√8

2

11. 6±√20

4

12. 0 and −5


√24

2

2. −12

and 72

3. −4±√12

2

4. −3 and 05. −2±

√8

2

6. −43

and 13

7. 6±√28

2

8. 2 and 12

9. 3±√5

2

10. 6±√40

2

11. 2±√8

2

12. 2±√8

2


√12

2

2. −32

and −1

3. −2±√12

2

4. 4±√8

2

5. -16. 6±

√24

2

7. −14

and −94

8. 12

and −2

9. 5±√13

2

10. −4±√32

4

11. 112. −2±

√8

2

Document No. QER84910761. −1

2and 7

2

2. 4±√28

6

3. −13

and −1

4. 3±√13

2

5. 5±√13

6

6. -17. 4±

√20

2

8. −114

and 14

9. −4±√24

4

10. 4±√8

2

11. −3 and 012. −3±

√13

2


√40

2

2. −6±√40

2

3. −3 and 14. 4±

√20

2

5. −4±√8

4

6. −32

and −17. 18. −9

2and −1

2

9. 2±√8

2

10. −6±√32

2

11. −6±√24

6

12. −4±√24

4


1. 6±√20

4

2. −3 and 03. −6±

√28

4

4. 4±√20

2

5. −4±√20

2

6. 4±√12

2

7. 4±√12

2

8. −3±√5

2

9. −3±√5

2

10. 4±√28

2

11. 2±√8

2

12. −4±√24

2


1. −5±√29

2

2. −5±√29

2

3. −4±√12

2

4. 6±√40

2

5. -16. −3±

√5

2

7. 74

and −14

8. 12

and −29. −3 and −110. −4±

√12

2

11. 2±√12

2

12. −5±√29

2


1. 6±√32

2

2. 4±√40

4

3. −12

and −132

4. −2±√8

2

5. 3±√13

2

6. −5 and 07. 1 and 38. 3±

√13

2

9. 12

and 92

10. −5±√29

2

11. −4±√20

2

12. −4±√8

2


1. 4±√20

2

2. 3±√13

2

3. −12

and −132

4. 14

and 94

5. 6±√40

2

6. 0 and 67. 4±

√8

2

8. −2±√8

2

9. 4±√8

4

10. 3 and 011. 5 and 012. −3±

√13

2


1. −6±√48

6

2. 5±√29

2

3. 3±√5

2

4. 3±√5

2

5. −6±√28

2

6. −6±√28

4

7. −2±√8

2

8. 6 and 09. −6±

√24

2

10. −6±√48

6

11. 6±√60

4

12. 6±√20

4


1. −14

and −94

2. 13. −4±

√12

2

4. 12

and 92

5. −2±√12

4

6. 94

and 14

7. −6±√48

2

8. −2±√12

2

9. −2 and 13

10. 111. 2 and −1

3

12. 3±√5

2


1. 6 and 02. 9

2and 1

2

3. −4±√8

2

4. 6±√48

6

5. −3 and −16. −2 and −17. −2±

√8

2

8. −4±√20

2

9. 6±√28

4

10. 92

and 12

11. 3 and −12

12. −6±√24

2


1. 5 and 02. −9

2and −1

2

3. −2±√8

2

4. 2±√20

4

5. 5±√29

2

6. −4±√24

2

7. 1 and 13

8. 32

and 1

9. 5±√37

2

10. 2±√8

2

11. −5±√13

6

12. −7±√37

6


1. −3 and 12. 6±

√12

6

3. 52

and 0

4. 2±√12

2

5. 1 and 13

6. −6±√40

2

7. −4±√28

2

8. 6±√60

6

9. 6 and 010. 4±

√8

4

11. 4±√24

2

12. 4±√12

2


1. 3±√13

2

2. 4±√20

2

3. 1 and 13

4. −16

and 76

5. −4±√8

4

6. 4±√20

2

7. −5±√29

2

8. 19. −6±

√60

6

10. 111. −3±

√5

2

12. 8±√48

4


1. 4±√12

2

2. −6±√40

2

3. −52

and 04. 15. −4±

√32

4

6. 2 and −13

7. 12

and 92

8. −6±√48

2

9. 110. −4±

√20

2

11. 6±√40

2

12. −2±√20

4


1. 4±√12

2

2. 92

and 12

3. −6±√24

2

4. 4±√32

4

5. −12

and −1

6. 4±√20

2

7. 6±√32

2

8. 5±√37

2

9. −3 and 010. −4±

√8

4

11. −92

and −12

12. −6±√60

4


1. −6±√72

6

2. 6±√32

2

3. −5±√37

2

4. −2±√8

2

5. 134

and 14

6. 6±√40

2

7. −14

and −94

8. −5±√13

6

9. −6±√28

2

10. −6±√28

2

11. −6±√20

4

12. 4±√8

2


1. −3±√5

2

2. 2 and 13. −3±

√13

2

4. −5±√29

2

5. −2±√12

2

6. −52

and 07. 18. 4±

√8

2

9. 4±√20

2

10. -111. −6±

√28

4

12. 6±√24

6


1. −6±√52

4

2. 2±√12

2

3. 6±√28

2

4. −3±√5

2

5. −1 and 36. −4±

√12

2

7. −6±√32

2

8. −6±√32

2

9. 16

and −76

10. −4±√8

2

11. −3 and −12

12. 4±√12

2


1. −94

and −14

2. −1 and −23. 1 and 24. −3±

√13

2

5. −4±√20

2

6. 8±√52

2

7. 18. 9

2and 1

2

9. 6±√24

2

10. 5±√29

2

11. 4±√12

2

12. 4±√24

2


4and 9

4

2. 4±√24

4

3. 152

and 12

4. −4±√12

2

5. -16. 6±

√28

4

7. −3±√13

2

8. −14

and −154

9. 0 and −610. 2±

√12

2

11. −4±√20

2

12. −4±√8

2


√24

4

2. 16

and −76

3. 0 and 52

4. −6±√48

2

5. −12

and −1

6. 4±√12

2

7. 4±√8

2

8. −74

and 14

9. −4±√8

4

10. 4±√12

2

11. −6±√60

6

12. 6±√28

4


√24

2

2. −6±√32

2

3. 5±√13

2

4. −6±√40

2

5. 4±√12

2

6. −6±√40

2

7. 6±√20

4

8. 1 and 29. 6±

√28

2

10. 2±√12

2

11. −12

and −92

12. 94

and 14


√24

2

2. 12

and 92

3. -14. −3

2and −1

5. −92

and −12

6. 152

and 12

7. −4±√12

2

8. 94

and 14

9. −12

and 72

10. −6±√40

2

11. 8±√40

6

12. 94

and 14

Document No. QER84910981. −5 and 02. −3±

√5

2

3. 7±√37

6

4. −3±√5

2

5. 3±√13

2

6. 17. −4±

√12

2

8. 6±√52

4

9. −3 and 010. 5±

√29

2

11. −14

and 114

12. 5±√13

2


√28

2

2. 3 and 13. 1

2and 1

4. −52

and 0

5. 4±√20

2

6. 3 and 17. −9

2and −1

2

8. −14

and −94

9. 13

and −1

10. −7±√13

6

11. 13

and 112. 1

2and −2

Document No. QER84911001. -12. 13. −6±

√32

2

4. 3±√5

2

5. 0 and −56. −1

2and −1

7. −6±√32

2

8. 2±√12

4

9. 14

and 94

10. −1 and −12

11. −4±√8

4

12. 3±√5

2

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