Margföldun – Æfing 3.5 – Svör

  1. 7x2 – 14x + 7
  2. 49x2 – 98x + 49
  3. x2 – 25
  4. 4r2 – 16
  5. 9a2 – 49
  6. abcp + ab2p + b2cp + pb3
  7. x3 + 2x2– 5x – 6
  8. v4 – 1