Exponent rules.

Here's a few I found:

- If the bases of the exponential expressions that are multiplied are the same, then you can combine them into one expression by adding the exponents.

- If the bases of the exponential expressions that are divided are the same, then you can combine them into one expression by subtracting the exponents.

- When you have an exponential expression raised to a power, you have to multiply the two exponents.

- Any number or variable raised to the zero power is always equal to 1.

Hopefully this helps a bit :)

Here you go.....http://www.purplemath.com/modules/exponent.htm