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Math Help - Equation problem

  1. #1
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    Equation problem

    Hello! I'm having trouble on solving this equation (x+y\sqrt5)^2=7+3\sqrt5

    Thank you!
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  2. #2
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    e^(i*pi)'s Avatar
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    Quote Originally Posted by GreenMile View Post
    Hello! I'm having trouble on solving this equation (x+y\sqrt5)^2=7+3\sqrt5

    Thank you!
    Solving for what? You can't solve it directly since we have two unknowns and one equation.

    To express x in terms of y go with completing the square
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  3. #3
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    I'm sorry, it says: Find all (x,y) pairs which satisfy:
    (x+y\sqrt5)^2=7+3\sqrt5

    Thank you.
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