Directions: Perform the operation indicated in each problem below.

1. (2 + 5i)(6 +3i)

2. (-2 - 5i)(-2 -i)

3. (-2 + 3i)(-2 -3i)

4. (4 + 5i)(4 -5i)

5. (10 - i)(7 + 5i)

6. (6 + 7i) (6 + 7i)

7. (5 - 4i)(4 - 5i)

8. (4 - 10i)(-4 + 10i)

9. (8 + 9i)(10 + 11i)

10. (2 + 3i)(2 - 3i)

11. (27 - 3i)(3 + i)

12. (2 - i3) (2 + i3)

13. 2i( 3i - 2)

14. (3 - 6i)²