- #1

- 5

- 0

## Homework Statement

1) 25 to the [itex]\frac{1}{2}[/itex] - [itex]\frac{5 to the -4}{5 to the -5}[/itex]

## Homework Equations

## The Attempt at a Solution

1) 25 to the [itex]\frac{1}{2}[/itex] = [itex]\sqrt{25}[/itex] = 5 i know that

i get lost on the next bit... i end up with

[itex]\frac{-625}{-3215}[/itex] and therefor

5 - [itex]\frac{1}{5}[/itex] = 4[itex]\frac{4}5{}[/itex] but this is not in index form?? if i take it further...

[itex]\sqrt[5]{4}[/itex] to the 4 and from there i have no idea how to go further, plus i am positive i've gone wrong at a much earlier stage.