Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  (75) • 73

Step  2  :

Equation at the end of step  2  :

  75 • 73

Step  3  :

Multiplying exponents :

 3.1    7⁵  multiplied by  7³   = 7^{(5 + 3)} = 7⁸

Final result :

  78