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avatar+3444 

Help.

NotSoSmart  Dec 12, 2017
 #1
avatar+89889 
+1

( d  - 4b)^3   

C(3,0) *d^3   -  C(3,1)* d^2 * (4b)  + C(3,2)* d * (4b)^2  - C(3,3)*(4b)^3

 

1 * d^3    -   3*d^2 * (4b)    +  3 *  d *  16b^2  -   1 * 64b^3

 

d^3   -   12d^2b  + 48db^2  -  64b^3

 

cool cool cool

CPhill  Dec 12, 2017

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