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Math Help - Simple Differentiation 2 :)

  1. #1
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    Simple Differentiation 2 :)

    Show that if y=2x-x then

    <br />
y*\frac{d^2y}{dx^2}-2*\frac{dy}{dx}+2y=4(x-1)<br />
    Last edited by alibond07; November 29th 2009 at 01:21 PM.
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  2. #2
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    Quote Originally Posted by alibond07 View Post
    Show that if y=2x-x 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?
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  3. #3
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    Quote Originally Posted by ANDS! View Post
    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.
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  4. #4
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    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...
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