x^2-x+1,2x-1,x^2-2x
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Recent Referers:
  1. http://formula.s21g.com/?x%5E2-x+1,2x-1,x%5E2-2x.png
  2. http://formula.s21g.com/?x%5E2-x%2B1%2C2x-1%2Cx%5E2-2x
  3. http://formula.s21g.com/?x%5E2-x+1,2x-1,x%5E2-2x
  4. https://formula.s21g.com/formulae/48672
  5. https://blog.s21g.com/lvs