Solution - Simplification or other simple results

Step  1  :

 1.1     9 = 32

(9)⁶ = (3²)⁶ = 3¹²

Equation at the end of step  1  :

  ((99) • (910)) • 312

Step  2  :

 2.1     9 = 32

(9)¹⁰ = (3²)¹⁰ = 3²⁰

Equation at the end of step  2  :

  ((99) • 320) • 312

Step  3  :

 3.1     9 = 32

(9)⁹ = (3²)⁹ = 3¹⁸

Equation at the end of step  3  :

  (318 • 320) • 312
 Step  4  :

Multiplying exponents :

 4.1    3³⁸  multiplied by  3¹²   = 3^{(38 + 12)} = 3⁵⁰

Final result :

  350