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Math Help - Grouping Expressions

  1. #1
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    Grouping Expressions

    Kind of having trouble with grouping these two expressions. Can anyone help?

    36x36x2 + 6x + 1

    For this one I came up with: (1 - 6x2) + (6x + 1)

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    And then this one, which I know I got completely wrong.
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  2. #2
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    Re: Grouping Expressions

    Quote Originally Posted by wrongnmbr View Post
    Kind of having trouble with grouping these two expressions. Can anyone help?

    36x36x2 + 6x + 1

    For this one I came up with: (1 - 6x2) + (6x + 1) no

    ---



    And then this one, which I know I got completely wrong.
    -6x^2(6x+1) + (6x+1) = (6x+1)(-6x^2+1) = (6x+1)(1-6x^2)

    x^{-\frac{9}{2}}(25 + 10x + x^2) = x^{-\frac{9}{2}}(x+5)^2
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  3. #3
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    Re: Grouping Expressions

    Quote Originally Posted by wrongnmbr View Post
    Kind of having trouble with grouping these two expressions. Can anyone help?

    36x36x2 + 6x + 1

    For this one I came up with: (1 - 6x2) + (6x + 1)

    ---



    And then this one, which I know I got completely wrong.
     \begin{array}{l} -36x^3-6x^2+6x+1\\-6x^2(6x+1)+(6x+1)\\-(6x+1)(6x^2-1) \end{array}
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