1. Simplify

2. Complex Numbers

3. Complex Numbers Intro Definition of Pure Imaginary Numbers: For any positive real number, “b” Where i is the imaginary unit and bi, is called a pure imaginary number.

4. Continued… i= i 2 =-1 i 3 =-i i 4 =1

5. Definition Simplify 1.

6. Simplifying Numbers Using i 2. -3i*8i

7. Simplifying Imaginary Numbers 3. i 75

8. Multiplying Complex Numbers 4. (5i)(-4i)

9. 5. (8 – 5i)(2 + 3i)

10. 6. (3 – 4i) 2

11. Adding Complex Numbers 7. (5+7i)+(-2+6i)

12. 8.

13. Finding Complex Solutions 9. Solve 4x 2 +100=0

14. 10. Solve 3x 2 + 300 = 0

15. Homework: Pg. 278 2-52 even