Lesson 2.

1.  Multiplying powers with the same base but different exponents:

To multiply powers with the same base you add the exponents.

2. Dividing powers with the same base but different exponents:

     
To divide powers with the same base you subtract the exponents.

The exponent '1' is not usually shown.

3. You can choose differnet ways to simplify

	or
If you  expand the expression		you can simplify the problem by cancelling.

4.  Any number that is written with the  power  0 always equals 1 .

Examples:

1.
2.
3.

Now try Quiz 2 on Powers.