B. Find all the rational roots of the following polynomial functions. With solution po sana
1. x ^ 3 + 4x ^ 2 + 5x + 2 = 0
2. 5x ^ 3 + 29x ^ 2 + 19x - 5 = 0
3. 4x ^ 3 - 9x ^ 2 + 6x - 1 = 0
4. 3x ^ 3 + 11x ^ 2 + 5x - 3 = 0
5. 5x ^ 4 - 46x ^ 3 + 84x ^ 2 - 50x + 7 = 0​