Roots:
1. 7 & -4
2. 1 & -1/2
3. 1/5 & 1/5
4. 3/7 & -3/7
5. (-1+√7)/3 & (-1-√7)/3 or 0.55 and -1.22
Sum
1. 3
2. 1/2
3. 2/5
4. 0
5. -0.67
Products
1. -28
2. -1/2
3. 1/25
4. -9/49
5. -0.671
