4 Test file number 13

  4.1 Problem number 324
  4.2 Problem number 1075
  4.3 Problem number 1089
  4.4 Problem number 1090
  4.5 Problem number 1287
  4.6 Problem number 1288
  4.7 Problem number 1315
  4.8 Problem number 1366
  4.9 Problem number 1374

Test folder name:

test_cases/1_Algebraic_functions/1.1_Binomial_products/1.1.1_Linear/13_1.1.1.2-a+b_x-^m-c+d_x-^n