B. Describe the nature of the roots of the following quadratic equations.
1. x2 + 5x + 6 = 0
2. 2x2 - 3x - 1 = 0
3. x2 - 16x + 64 = 0
4. 3x2 + 5x + 8 = 0
C. Determine the sum and product of the roots of the following quadratic equations.
3. x2-5x + 8 = 0
1. x2 + 3x + 5 = 0
4. x2 + 4x + 4 = 0
2. 2x2 - 4x - 1 = 0