Solution - Simplification or other simple results

Step  1  :

Step  2  :

Pulling out like terms :

 2.1    Simplify ( 2n+4 )³

Put the exponent aside and simplfy the base by pulling out like factors :
 2n+4  =  2 • (n+2) 

Remember the 4th law of exponents : (a • b)^m= a^m• b^m

Retract the exponent and apply the 4th law to the simplified base: ( 2 • (n+2) )³ =  (2)³ • (n+2)³  

Final result :

  (2)3 • (n + 2)3