Respuesta :

hello : 
1 )  
number cube : a^3 = a×a×a
for exempl : 4^3 = 4
×4×4 = 64
2) 
a number that is a cube root is : [tex] \sqrt[3]{b} [/tex]  ( a number  x :   b^3 =x )
for exempel :  [tex] \sqrt[3]{8} [/tex] = 2 because : 2^3 =8)