Factor the following completely. Write PRIME if not factorable. (10points)
1. 4x + 2y
2. x²-25
3. 8x² + 12x
4. 16x³-8x²
5. x² +8x + 12
6. y³-27
7. b²-6b+9
8. x²-2x+8
9. 10ax²-15ax -25a
10. ab-2ac + 5b-10c​