Margföldun – Æfing 3.4 – Svör

  1. x2 + 6x + 9
  2. 4y2 + 16y + 16
  3. z3 + 3z2 + 3z + 1
  4. p2 – 6pq + 9q2
  5. 4x2 – 12xy + 9y2
  6. 9x2 + 6x + 1
  7. 25 – 20x + 4x2
  8. 25x4 – 20x3 + 4x2