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Math Help - Quadratic equation problem

  1. #1
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    Quadratic equation problem

    Hello, I'm having a lot of trouble solving the following problem:

    Treating the, 4+4x+2y+5x^2+3xy+4y^2=0 as a quadratic equation in x with coefficients in terms of y, solve for x.
    Any help would be greatly appreciates

    Thanks
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  2. #2
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    Quote Originally Posted by spoc21 View Post
    Hello, I'm having a lot of trouble solving the following problem:

    Treating the, 4+4x+2y+5x^2+3xy+4y^2=0 as a quadratic equation in x with coefficients in terms of y, solve for x.
    Any help would be greatly appreciates

    Thanks
    Re-arranging: 5x^2 + (4 + 3y)x + (4y^2 + 2y + 4) = 0.

    a = ..., b = ....., c = ......

    Substitute into the quadratic formula etc.
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  3. #3
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    Thanks for your reply.
    I'm getting a very strange solution:x = 4y^2-3y+4..I'm still not sure if my method is correct. I was wondering if you could please explain this problem, so that I can learn from this..

    thanks
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  4. #4
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    Quote Originally Posted by spoc21 View Post
    Thanks for your reply.
    I'm getting a very strange solution:x = 4y^2-3y+4..I'm still not sure if my method is correct. I was wondering if you could please explain this problem, so that I can learn from this..

    thanks
    Please post all your working.
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