Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x2"   was replaced by   "x^2". 

Step  1  :

Equation at the end of step  1  :

  5x222 • x21

Step  2  :

Multiplying exponential expressions :

 2.1    x²²² multiplied by x²¹ = x^{(222 + 21)} = x²⁴³

Final result :

  5x243