The Zero Exponent Rule

Please watch the video to understand the Zero Exponent Rule.

`x^0 = 1`, where `x != 0`

If the base is not zero, and the exponent is zero, the answer 1.

Here's the reason why this makes sense. Suppose I have `5^3/5^3`, using the quotient rule this is `5^(3-3) = 5^0`. I can also think of what happens when I simplify this like a fraction `5^3/5^3 = 125/125 = 1`.

`x^0 = x^n/x^n = 1` as long as `x` isn't zero (we cannot divide by zero).

Complete this expression. Assume that any variables are not equal to zero.
`z^0`=

Simplify the following expression completely.
`(2w+2)^0` =

Simplify the following.
`3^0` =

Note: `0^0` is undefined. `0^n = 0` for any exponent `n != 0`.
Simplify. `0^4` =