Теория:

The power operation is recorded as follows:
60.svg
 
 a.svg - base;
 
 b.svg - exponent;
                                             
 c.svg - the result of the increment or the value of the degree
 
reads: " a to the powerequals c "
Calculating a step value is called stepping!
If the magnifier is a natural number                         
an=aaa...antimes                                                                           
The positive value of a positive integer is always positive.
32=33=9
 
253=252525=8125
A negative number is positive if the multiplier is an even number and negative if the multiplier is an odd number.
(3)4=(3)(3)(3)(3)=81
 
(3)3=(3)(3)(3)=27
Important!
Distinguish some seemingly similar notes (2)4 and 24. In the first case, the minus sign is the base sign \((-2)\) and in the second case, the degree sign (base is \(2\)).    
(2)4=(2)(2)(2)(2)=16
 
24=(2222)=16.