1. ## algebra

$\displaystyle p^2x^2 + q^2 y^2-qx-py+ (\frac{p}{q}-\frac{q}{p})^2 +2 = 0, find (p^2x+q^2y)-p-q.$
Thank you.

2. I'm not really sure about what you're asking me to do, Could you go into detail for me? If I understand the problem better, I can help you.

3. Even I am confused.

4. just expand the expression then isolate that unit that you are supposed to find, just like you would isolate y or x or any other single variable. except here its just a little more complicated, but im sure you've got it sorted. its like rearranging the equation...
have fun

5. Hello scouser
Originally Posted by scouser
just expand the expression then isolate that unit that you are supposed to find, just like you would isolate y or x or any other single variable. except here its just a little more complicated, but im sure you've got it sorted. its like rearranging the equation...
have fun
I don't understand what you mean. Can you show us, please?

6. This is what I have done.

or =0

or = 0

or

or (I cannot proceed anymore)

7. why are you keeping zero on one side? isolate your unit on that side, fiddle around till you get it. you already know what you have to find so you only have the easy part left. its probably half done for you already.

8. Can you please post the full solution?