Solution - Power equations

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x1"   was replaced by   "x^1". 

Step  1  :

            x21
 Simplify   ———
            x2 

Dividing exponential expressions :

 1.1    x²¹ divided by x² = x^{(21 - 2)} = x¹⁹

Equation at the end of step  1  :

  (x1)
  ———— • x19
   1  
 Step  2  :
            x
 Simplify   —
            1

Equation at the end of step  2  :

  x • x19

Step  3  :

Multiplying exponential expressions :

 3.1    x¹ multiplied by x¹⁹ = x^{(1 + 19)} = x²⁰

Final result :

  x20