8.2.1 Radical Expressions and Rational Exponents - Worksheet (continued)
Example 5: Simplify each expression. 20. 13 13 1 2 3 2 ⋅
1 2 1 3 ( )
4 3 2 3
1 3
23. 8 27
21. 9 9
22. 64
6 1 2 6 ( )
1 3
25. 7 7 1 4 ⋅
3 4
1 2
−
−
−
24.
26.
27.
( 125) −
25
Example 6: 28. The side length of a cube can be determined by finding the cube root of the volume. What is the side length to the nearest inch of the cube shown?
Volume = 50 ft 3
210
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