1. ## Is this right?

Hi Guys,

Given this question and I think I have it correct but it just doesn't look right.

Have I done something wrong?

Cheers

Expand ( x + ⅟x )² = x² + 2x⅟x + ⅟x₂
= x² + 2 + ⅟x₂

2. Hey!

Originally Posted by Joel
Hi Guys,

Given this question and I think I have it correct but it just doesn't look right.

Have I done something wrong?

Cheers

Expand ( x + ⅟x )² = x² + 2x⅟x + ⅟x₂
= x² + 2 + ⅟x₂
$(x + \frac{1}{x})^2 = x^2+2*x*\frac{1}{x}+(\frac{1}{x})^2$

$=x^2+2+\frac{1}{x^2}$

Yes, you are right!

Cheers
Rapha

3. Hello,
Originally Posted by Joel
Hi Guys,

Given this question and I think I have it correct but it just doesn't look right.

Have I done something wrong?

Cheers

Expand ( x + ⅟x )² = x² + 2x⅟x + ⅟x₂
= x² + 2 + ⅟x₂
No, it's correct

4. Just didn't look right for some reason. The text that you reply in... is that from a special program, as it makes math symbols just so clear, rather than in word
??? thanks heaps

5. Originally Posted by Joel
Just didn't look right for some reason. The text that you reply in... is that from a special program, as it makes math symbols just so clear, rather than in word
??? thanks heaps
It's a mathematics compiling language known as LaTeX.

If you want to learn how to use it, there is a LaTeX help sub-forum on this site.