You are Here: Home >< Maths

1. Ok, now I'm not normally stupid but right now I'm having a complete retard moment and just wanted to see if somebody can tell me how to stop being so bloody stupid.

Working through a question (what the question is isn't important) and I end up with:

(v^2 - 1)/(2v) - v on one side.

Now I know that this becomes (-v^2 - 1)/(2v) but for some reason I can't see why.

Can somebody please tell me how I get from the first line to the second.
2. v=(2v^2)/(2v)
3. (Original post by officelinebacker)
Ok, now I'm not normally stupid but right now I'm having a complete retard moment and just wanted to see if somebody can tell me how to stop being so bloody stupid.

Working through a question (what the question is isn't important) and I end up with:

(v^2 - 1)/(2v) - v on one side.

Now I know that this becomes (-v^2 - 1)/(2v) but for some reason I can't see why.

Can somebody please tell me how I get from the first line to the second.
And what is on the other side?

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: December 13, 2010
Today on TSR

### Degrees to get rich!

... and the ones that won't

### Cambridge interviews pour in...

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.