a) [tex]3^{69} = (3^{23} )^{3} = cub perfect[/tex]
e)[tex]19^{33} =( 19^{11} )^{3} = cub perfect[/tex]
b)[tex]4^{51} =(4^{17})^{3} = cub perfect[/tex]
f) [tex]17^{42} = (17^{14} )^{3} = cub perfect[/tex]
c) [tex]8^{61} =( 2^{3} )^{61} = 2^{183} = (2^{61} )^{3} = cub perfect[/tex]
g)[tex]27^{28} =(3^{3} )^{28} =3^{84} =(3^{28} )^{3} = cub perfect[/tex]
Sper ca te-am ajutat!
