CONCEPTS 13. 1. Using exponential notation, we can write V5 as 2. Using radicals, we can write 512 as . 3. Is there a difference between V5 and (V5)²? Explain. 14. 2-15 15. 4. Explain what 4/2 means, then calculate 432 in two different 16. ways: (4/½). (4°) 17. or 5. Explain how we rationalize a denominator, then complete the 18. following steps to rationalize 19–26 - Evaluating Radicals Evaluate each expression. 19. (а) VI6 (b) Vī6 (c) VE V3 20. (а) V64 (b) V-64 (c) V-32 6. Find the missing power in the following calculation: 51/3.5 = 5. VI8 (b) V8I 21. (а) 3V16 (c) V? 7-8 - Yes or No? If No, give a reason. 22. (a) 2V8ī (c) VE 7. Is the expression V 4a² necessarily equal to 2a? 8. Is the expression Va² + 4 necessarily equal to a + 2? 23. (а) V7 V28 (c) V4 V54 V3 SKILLS 24. (a) VīZ V24 V54 (b) (e) VT5 V75 9-18 - Radicals and Exponents Write each radical expression using exponents and each exponential expression using radicals. V216 25. (a) (b) V7V37 (c) VIVT Radical expression 26. (a) VĮVI VA (c) 108 Exponential expression (b) Vị VT28 9. 27-38 - Simplifying Radicals Simplify the expression. Assume that the letters denote any real numbers. 27. VF 10. 28. VO 11. 4/3 29. V32y 31. V16x* 30. V8a* 32. Vry 12. 10-3/2 -1's