Solution - Power equations

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-8" was replaced by "^(-8)".

(2): "1.68" was replaced by "(168/100)".

Step  1  :

 1.1     10 = 2•5

(10)^-8 = (2•5)^(-8) = (2)^(-8) • (5)^(-8)

Equation at the end of step  1  :

  168
  ——— • ((2)(-8)•(5)(-8))
  100

Step  2  :

            42
 Simplify   ——
            25

Equation at the end of step  2  :

  42
  —— • ((2)(-8)•(5)(-8))
  25

Step  3  :

Multiplying exponents :

 3.1    5²  multiplied by  5⁸   = 5^{(2 + 8)} = 5¹⁰

Dividing exponents :

 3.2    2¹   divided by   2⁸   = 2^{(1 - 8)} = 2^(-7) = ¹/_2⁷

Final result :

     21                                     
  ———————— = 1.68000 • 10-8 
  (510•27)