INDICES AND THE LAW OF INDICES
Introduction
Indices are a useful way of more simply expressing large numbers. They also present us with many useful properties for manipulating them using what are called the Law of Indices.
What are Indices?
The expression a5 is defined as follows:
a5 = a x a x a x a x a
We call "a" the base and "5" the index.
Law of Indices
To manipulate expressions, we can consider using the Law of Indices. These laws only apply to expressions with the same base, for example, 34 and 32 can be manipulated using the Law of Indices, but we cannot use the Law of Indices to manipulate the expressions 35 and 57 as their base differs (their bases are 3 and 5, respectively).
And This is my 6 rules of the Law Of Indices
1. 
An Example :
Simplify 20 :
An Example :
Simplify 2-2:
3.
An Example :Simplify 5 x 53: (note 5 = 51)
4.
An Example :
Simplify 
5.
An Example :
Simplify (y2)6 :
6.
An Example :
Simplify 1252/3:
