Question

Encuentra la expresión factorizada de cada binomio:
1- 125 a3 b3
27-8z3

Answer 1

$1 - 125 {a}^{3} {b}^{3} = {1}^{3} - {(5ab)}^{3} = \\ = (1 - 5 {a} {b} )(1 + 5ab + {25 {a}^{2} {b}^{2} } )$

$27 - 8 {z}^{3} = {3}^{3} - {(2z)}^{3} = \\ = (3 - 2z)(9 + 6z + 4 {z}^{2} )$