Margföldun – Æfing 3.2

  1. qnr2·q5·rm
  2. (2a + 4b)2
  3. (3x – 5)2
  4. (6q + 2)(6q – 2)
  5. a(x + 3)
  6. (x2 – b – 1)2x
  7. (2 – x)(x + 1)
  8. (p + q + r)(p + q – r)