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13newbhal 13newbhal
  • 10-01-2017
  • Mathematics
Answered

if 3x^2-2x+7=0 then (x-1/3)^2=

Verified Answer :

phuong9822 phuong9822
  • 10-01-2017

3x^2−2x+7=0
3x^2−2x+1/3+7−1/3=0
3(x^2−2x/3+1/9)+7−1/3=0
3(x−1/3)^2+(21−1)/3=0
3(x−1/3)^2=−20/3
(x−1/3)^2=−20/9

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