1. Warm up – Simplify

2. Questions over hw?

3. Skills Check 2x – 3 2x + 1 Perform the indicated operation.
Find the area & perimeter of the rectangle.
3. Perimeter = ____
4. Area = ____
2x – 3
2x + 1

4. Imaginary Numbers

5. You CAN have a negative under the radical
You CAN have a negative under the radical. You will bring out an “i“ (imaginary).

6. Powers of i (The i Chart)

7. “I one, I one!!” Negatives in the middle.
Reference

8. Simplify

9. Complex Number Standard Form (add this to your notes)

10. Add and Subtract Complex Numbers

11. Add/Subt Complex Numbers
Treat the i’s like variables
Combine like terms
Simplify (no powers of i higher than 1 are allowed)
Answer in standard form a + bi

12. Simplify

13. Simplify

14. Simplify

15. Simplify

16. Simplify

17. Multiplying Complex Numbers (no powers of i higher than 1 are allowed in your answer)

18. Multiplying Complex Numbers

19. Multiplying Complex Numbers

20. Multiplying Complex Numbers

21. Dividing Complex Numbers (no powers of i in the denominator are allowed in your answer)

22. What is a Conjugate? Example: (2 – 4i)

23. 17. Dividing – Multiply top & bottom by the Conjugate

24. 18. Dividing – Multiply top & bottom by the Conjugate

25. CW/HW Complex Numbers Practice Worksheet