Question

Qual a raiz quadrada de

$\sqrt[5]{-32}$

- $\sqrt[4]{81}$

$\sqrt[6]{64}$

Answer 1

basta decompor ... 

32/2
16/2
8/2
4/2
2/2
1 

- 32 = - (2^5) 

^5√- 32 = ^5√-(2)^5 = - 2 

==============================================

81/3
27/3
9/3
3/3
1

81 = 3^4 

-^4√81 = -^4√3^4 = - 3 

===================================

64/2
32/2
16/2
8/2
4/2
2/2
1

64 = 2^6 

^6√64 = ^6√2^6 = 2                                              ok