1. Imaginary root
Reference book: Algebra & Trigonometry, M. Sullivan

2. Solution
Reference book: Algebra & Trigonometry, M. Sullivan

3. Problems
Reference book: Algebra & Trigonometry, M. Sullivan

4. Notation
Reference book: Algebra & Trigonometry, M. Sullivan

5. Addition & Subtraction
Reference book: Algebra & Trigonometry, M. Sullivan

6. Argand Diagram
Reference book: Algebra & Trigonometry, M. Sullivan

7. Addition on Argand diagram
Reference book: Algebra & Trigonometry, M. Sullivan

8. Addition
Reference book: Algebra & Trigonometry, M. Sullivan

9. Subtraction
Reference book: Algebra & Trigonometry, M. Sullivan

10. Multiplication
Reference book: Algebra & Trigonometry, M. Sullivan

11. Conjugate
Reference book: Algebra & Trigonometry, M. Sullivan

12. Problems
Reference book: Algebra & Trigonometry, M. Sullivan

13. Division
Reference book: Algebra & Trigonometry, M. Sullivan

14. Problems
Reference book: Algebra & Trigonometry, M. Sullivan

15. Reference book: Algebra & Trigonometry, M. Sullivan