19 Test file number 29

  19.1 Problem number 3
  19.2 Problem number 5
  19.3 Problem number 6
  19.4 Problem number 65
  19.5 Problem number 68
  19.6 Problem number 69
  19.7 Problem number 586

Test folder name:

test_cases/1_Algebraic_functions/1.1_Binomial_products/1.1.3_General/29_1.1.3.8_P-x-c_x-^m-a+b_x^n-^p