Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x3"   was replaced by   "x^3". 

Step  1  :

Multiplying exponential expressions :

 1.1    x²⁷ multiplied by x³ = x^{(27 + 3)} = x³⁰

Final result :

  x30