Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  ((24) • (25)) -  (22^2)
 Step  2  :

Equation at the end of step  2  :

  ((24) • 25) -  24

Step  3  :

Equation at the end of step  3  :

  (24 • 25) -  24
 Step  4  :

Final result :

  496