- #1

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## Homework Statement

For the solution to a given problem, in the second to last step I had:

##-\frac{\sqrt 6}{4} + \frac{\sqrt 2}{4}##

I stated next that the solution was ##-\frac{\sqrt{6}+\sqrt{2}}{4}##

I was told this was incorrect and that the correct solution is ##\frac{-\sqrt{6}+\sqrt{2}}{4}##

## Homework Equations

## The Attempt at a Solution

Could someone explain this error to me? Is it not true that ##-\frac{a}{b}=\frac{-a}{b}=\frac{a}{-b}##?

Or is this case different because I have an expression on the top, not just a single variable?