Ответ:

2. Разложите на множители.

  1. \( p^2 - 2pq + q^2 = (p - q)^2 \)
  2. \( u^2 + 2uv + v^2 = (u + v)^2 \)
  3. \( z^2 - 20z + 100 = (z - 10)^2 \)
  4. \( m^2 + 121v^2 - 22mv = m^2 - 22mv + 121v^2 = (m - 11v)^2 \)
  5. \( 56bc + 16b^2 + 49c^2 = 16b^2 + 56bc + 49c^2 = (4b + 7c)^2 \)
  6. \( -20dx + 4d^2 + 25x^2 = 4d^2 - 20dx + 25x^2 = (2d - 5x)^2 \)
  7. \( 400t^2 + 120bt + 9b^2 = (20t + 3b)^2 \)
  8. \( 256u^2 - 416au + 169a^2 = (16u - 13a)^2 \)