Þáttun – Æfing 4.5 – Svör

  1. (x + 3)(x + 4)
  2. (x – 2)(x – 3)
  3. (x + 6)(x – 5)
  4. (3x + 3)(x + 6)
  5. (x + 3)(x – 10)
  6. (x + 4)(x + 7)
  7. (x – 6)(x +5)
  8. (2x – 3)(x + 4)
  9. (3x + 3)(2x + 1)