Verified answer

V=a³

128=2^7

2^7=a³

a=(2^7)^1/3= (2^6.2)^1/3

a=2^6/3.2^1/3

a=2².2^1/3

a=4.2^1/3 = 4. 1,26=5,04cm

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V = 128

a³ = 4³.2

a = ³V4³.2

a = 4.³V2 cm

V= a³

V = 128 cm³

V = 2^7 cm³

a³ = 2^7 cm³

a = 2^7/3 cm³/³

a = 2² * 2¹/³ cm

a = 4 (raiz cúbica de 2) cm

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