1.
The bases are the same (both 2's), so the exponents are subtracted. 
2. ^{
}The bases can be negative values. The parentheses tell you that the entire negative value is being raised to the power.

3. ^{
}The bases are the same fraction 3/4, so the exponents are subtracted. 
4. ^{
}Sneaky one!!!! The bases were not the same in the original problem, but they can be CHANGED to be the same.
4 can be rewritten as 2 squared.
(Multiplication Rule).

5. ^{
}As was done in Example 4, the bottom number is changed to be compatible with a base value of 5. 
6. ^{
}If the exponents are expressed as variables, simply apply the rule (subtract the variables) and leave the answer in that form.

7.
The bases are the same (all x's), so the exponents are subtracted. The numbers in front of the bases are divided.

8.
Remember: top exponent minus bottom exponent.
Remember: raising to a 0 power creates a 1.

9.
The subtraction is always done "top" minus "bottom" exponents. In this problem we get 3  5 = 2. This gives us a negative exponent. Remember, with negative exponents, the answer becomes one over the base with the exponent changed to positive.

10.
Again, subtraction "top" minus "bottom" exponents. In this problem we get 5  9 = 4.
The answer becomes one over the base of x raised to the power of +4. 
11.
WOW!!
This problem combines a multitude of skills to arrive at the final answer.
