Solution - Power equations

Reformatting the input :

Changes made to your input should not affect the solution:

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

(2): "12.8" was replaced by "(128/10)".

Step  1  :

 1.1     10 = 2•5

(10)^-1 = (2•5)^(-1) = (2)^(-1) • (5)^(-1)

Equation at the end of step  1  :

  128
  ——— • ((2)(-1)•(5)(-1))
  10 

Step  2  :

            64
 Simplify   ——
            5 

Equation at the end of step  2  :

  64
  —— • ((2)(-1)•(5)(-1))
  5 

Step  3  :

Multiplying exponents :

 3.1    5¹  multiplied by  5¹   = 5^{(1 + 1)} = 5²

Dividing exponents :

 3.2    2⁶   divided by   2¹   = 2^{(6 - 1)} = 2⁵

Final result :

  32           
  —— = 1.28000 
  25