Simplifying Radical Expressions Skill Practice! Simplify 1. 28 2. 40 3. 72 4. 99 5. 2 • 10 6. 5 • 60 7. 3 5 • 5 8. 6 • 4 24 9. 2 3 • 3 15 10. 16b 4 11. 81c d 12. 40x y 2 4 4 6 13. 75m n 14. 4h 15. 3 5 2 5 2 – 3 140