8 Section 2.2.1, Complex roots. Page 141

8.1 problem Example 2
8.2 problem 1
8.3 problem 2
8.4 problem 3
8.5 problem 4
8.6 problem 5
8.7 problem 6
8.8 problem 8
8.9 problem 9
8.10 problem 18
8.11 problem 19