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What is the value of 2a3 - a, when a = 4?

Guest Apr 15, 2017
 #1
avatar+87301 
+2

2a^3   -  a    .....   a  = 4

 

2 (4)^3  - 4

 

2(64) - 4  =

 

128 - 4  =

 

124

 

 

cool cool cool

CPhill  Apr 15, 2017

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