Solution - Simplification or other simple results

Step  1  :

 1.1   

Negative number raised to an odd power is negative

To show this we begin with (-7)⁵ ,a negative number raised to an odd exponent:

(-7)⁵ can be written as (-7)•(-7)•(-7)•(-7)•(-7)

Now, using the rule that says minus times minus is plus, (-7)⁵ can be written as (49)•(49)•(-7) which is a negative number. 

 We showed that (-7)⁵ is a negative number  

 Using the same arguments as above, replacing (-7) by any negative number, and replacing the exponent 5 by any odd exponent, we proved which had to be proved  

 

Equation at the end of step  1  :

  ((0 -  ( -23 • 2)) +  2) -  1

Step  2  :

Multiplying exponents :

 2.1    2³  multiplied by  2¹   = 2^{(3 + 1)} = 2⁴

Equation at the end of step  2  :

  ((0 -   -24) +  2) -  1

Step  3  :

Final result :

  17