Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-4" was replaced by "^(-4)".

Step  1  :

Equation at the end of step  1  :

  ((2-4) • (24)) • 23

Step  2  :

Equation at the end of step  2  :

  ((2-4) • 24) • 23

Step  3  :

Equation at the end of step  3  :

  ((2)(-4) • 24) • 23
 Step  4  :

Final result :

  23