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4(7n2+7n−1)

Guest Feb 17, 2017

Best Answer 

 #1
avatar+9485 
+5

4(7n2+7n−1)=28n2+28n-4

Omi67  Feb 17, 2017
 #1
avatar+9485 
+5
Best Answer

4(7n2+7n−1)=28n2+28n-4

Omi67  Feb 17, 2017

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