Solution - Power equations

Step  1  :

Equation at the end of step  1  :

Step  2  :

Equation at the end of step  2  :

Step  3  :

            78
 Simplify   ——
            75

Dividing exponents :

 3.1    7⁸   divided by   7⁵   = 7^{(8 - 5)} = 7³

Final result :

  343