Answer:
Step-by-step explanation:
1). [tex]((3^2)^{3} )^{\frac{1}{3} }[/tex] = 3² = 9
2). [tex](x^{3} )^{\frac{2}{3} }[/tex] = 4² = 16
3). [tex]((15^{3} )^{\frac{1}{3} } )^{2}[/tex] = 15² = 225
4). [tex]((21^{3} )^{\frac{1}{3} } )^{2}[/tex] = 14² = 196 (Sorry I made a mistake, the base should be 14)
5). [tex](5^{3} )^{\frac{2}{3} }[/tex] = 25
6). ( [tex](16^{3} )^{\frac{1}{3} }[/tex] )² = 256
