Solution - Power equations

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-18" was replaced by "^(-18)".

(2): "2.8" was replaced by "(28/10)".

Step  1  :

 1.1     10 = 2•5

(10)^-18 = (2•5)^(-18) = (2)^(-18) • (5)^(-18)

Equation at the end of step  1  :

  28
  —— • ((2)(-18)•(5)(-18))
  10

Step  2  :

            14
 Simplify   ——
            5 

Equation at the end of step  2  :

  14
  —— • ((2)(-18)•(5)(-18))
  5 

Step  3  :

Multiplying exponents :

 3.1    5¹  multiplied by  5¹⁸   = 5^{(1 + 18)} = 5¹⁹

Dividing exponents :

 3.2    2¹   divided by   2¹⁸   = 2^{(1 - 18)} = 2^(-17) = ¹/_2¹⁷

Final result :

      7                                       
  ————————— = 2.80000 • 10-18 
  (519•217)