αž›ំហាត់
  1. αž…ូរដោះស្រាαž™αžŸαž˜ីαž€ារខាαž„αž€្រោមៈ 
  • $x^2+x-2=0$
  • $x^2-4x+3=0$
  • $x^2-7x+6=0$
  • $x^3-x^2+x-1=0$
    2. αž…ូαžšαžšαž€αžំαž›ៃ​ $a,b,c$ ដែαž›αž•្αž‘ៀαž„αž•្αž‘ាត់សមីαž€ារខាαž„αž€្រោមៈ
​​​​​​​ ​​​   $a^2-2b+1\ge0$ αž“ិαž„​ $b^2-2c+1\ge0$ αž“ិαž„ $c^2+2a+1\ge0$
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