Ответ:

  1. Ортақ көбейткішті шығарамыз: 2a(m+n)+b(m+n)=(m+n)(2a+b).
  2. 8(x−1)+(x−1)²=(x−1)(8+x−1)=(x−1)(x+7).
  3. 3c(x−y)−2d(x−y)=(x−y)(3c−2d).
  4. 3ab(x+2y)+c²(x+2y)=(x+2y)(3ab+c²).
  5. 9a²(x−2y)−b²(x−2y)+(x−2y)²=(x−2y)(9a²−b²+x−2y).
  6. 3a(2x−7)+5b(2x−7)−(2x−7)²=(2x−7)(3a+5b−(2x−7))=(2x−7)(3a+5b−2x+7).