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9c2−42+49 

Guest Mar 28, 2017
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 #1
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I think you want to factor this :

 

9c^2 - 42c  + 49   =

 

(3c - 7)  (3c - 7)  =

 

(3c - 7 ) ^2

 

 

 

cool cool cool

CPhill  Mar 28, 2017

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