Solution - Simplification or other simple results

Step  1  :

             x
 Simplify   ——
            28

Equation at the end of step  1  :

        x
  (8 • ——) • x
       28

Step  2  :

Multiplying exponential expressions :

 2.1    x¹ multiplied by x¹ = x^{(1 + 1)} = x²

Final result :

  2x2
  ———
   7