Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "t1"   was replaced by   "t^1". 

Step  1  :

Multiplying exponential expressions :

 1.1    t²⁸ multiplied by t¹² = t^{(28 + 12)} = t⁴⁰

Final result :

  t40