1. 
1) Simplify the expression (1 + 6i)(2i^{3} – 4) > 16 – 22i

2. 
2) What are the roots of y = 2x^{2} + 5x – 2? > and

3. 
3) What are the roots of y = x^{2} + 7x + 17? >

4. 
4) What are the roots of y = 5x^{2} – 10x + 5? > x = 1 + 2i and x = 1 – 2i

5. 
5) How many real roots does have? > 1 real root
