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tohlakFicafraza
tohlakFicafraza tohlakFicafraza
  • 08-08-2016
  • Mathematics
Answered

If 3x^2-2x+7=0, then (x-1/3)^2= ?

Verified Answer :

Anonymous Anonymous
  • 09-08-2016

3x^2-2x+7=0 


3x^2-2x=-7 


3(x^2-2/3x)=-7 


3(x^2-2/3x+1/9)=-7+3*(1/9) 



3(x^2-2/3x+1/9) = -20/3 


3(x-1/3)^2 = -20/3 


(x-1/3)^2 = (-20/3)/3 


(x-1/3)^2 = -20/9

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