1. Simple Differentiation 2 :)

Show that if y=2x-x² then

$
y*\frac{d^2y}{dx^2}-2*\frac{dy}{dx}+2y=4(x-1)
$

2. Originally Posted by alibond07
Show that if y=2x-x² then

$y*\frac{d^2y}{dx^2}-2*\frac{dy}{dx}+2y=4(x-1)$

Bear with me if it has been written wrong, still stying to get my head around LATEX .
Is that what you mean?

3. Originally Posted by ANDS!
Is that what you mean?

Yes! , I'm actually quite jealous of your ability to do that :L,but anyway I havent got a clue with the maths :S

Anyone know how to do it, i'm completely stumped.

4. I think you gotta learn basic derivatives techniques:

The first derivative of y with respect to x is = 2-2x
The second derivative of y with respect to x is = -2

Plug-in...