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    Im struggling with this question.
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    (Original post by Kadak)
    Im struggling with this question.
    Add 1 to both sides then square both sides



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    Get the square root by itself on one side of the equation, and then square everything.
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    (Original post by ghostwalker)
    Get the square root by itself on one side of the equation, and then square everything.


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    Did that,but where does the 2y come from?
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    (Original post by Kadak)
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    Did that,but where does the 2y come from?
    None of your attempts show you doing that. What did you get?
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    (Original post by ghostwalker)
    None of your attempts show you doing that. What did you get?


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    (Original post by Kadak)
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    Did that,but where does the 2y come from?
    (Y+1)^2


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    You can't square y and 1 separately you have to do (y+1) ^2


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    When you square one side of the equation you are squaring one thing, that is the "y+1", hence (y+1)^2. You can't just square the y term and square the 1 and add them.
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    (Original post by samb1234)
    You can't square y and 1 separately you have to do (y+1) ^2


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    Why can't I square them separately? They aren't together? :confused.
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    (Original post by Kadak)
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    Why can't I square them separately? They aren't together? :confused.
    Yes they are. Say for example you had something equal to 1+2. If you square them separately and added you would get 5 when clearly it is 3^2 ie 9


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    (Original post by samb1234)
    Yes they are. Say for example you had something equal to 1+2. If you square them separately and added you would get 5 when clearly it is 3^2 ie 9


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    Oh.Ok,Ty, I never knew that.
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    What's the answer for the second part?
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    (Original post by sofburgos)
    What's the answer for the second part?


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    I'm doing it now.Sorry it took so long,I just had breakfast and Ben and jerry Ice cream.
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    expand (y+1)^2
    you square y+1 because the other side everything is rooted.
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    (Original post by sofburgos)
    What's the answer for the second part?


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    Its 32/3.
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