Ответ:

  1. x1/2 + x = x1/2(1 + x1/2).
  2. (ab)1/3 + (ac)1/3 = a1/3b1/3 + a1/3c1/3 = a1/3(b1/3 + c1/3).
  3. y3/4 − y1/3 = y1/3(y5/12 − 1).
  4. 12xy1/2 − 3x1/2y = 3x1/2y1/2(4x1/2 − y1/2).