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Math Help - Last question for now - Complete the factorization

  1. #1
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    Last question for now - Complete the factorization

    Ok, so we have this on homework and never covered in clas and I dont even know where to begin

    Says complete the factorization
    -48x^5y^8 = -6x^3y^4 ( )
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  2. #2
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    Re: Last question for now - Complete the factorization

    Quote Originally Posted by bashemgud View Post
    Ok, so we have this on homework and never covered in clas and I dont even know where to begin

    Says complete the factorization
    -48x^5y^8 = -6x^3y^4 ( )
    (unknown \, \, factor) = \frac{-48x^5y^8}{-6x^3y^4}
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  3. #3
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    Re: Last question for now - Complete the factorization

    Quote Originally Posted by bashemgud View Post
    Ok, so we have this on homework and never covered in clas and I dont even know where to begin

    Says complete the factorization
    -48x^5y^8 = -6x^3y^4 ( )
    \displaystyle \begin{align*} -48x^5y^8 &= -6x^3y^4 \\ 0 &= 48x^5y^8 - 6x^3y^4 \\ 0 &= 6x^3y^4\left(8x^2y^4 - 1\right) \\ 0 &= 6x^3y^4\left[\left(2\sqrt{2}\,x\,y^2\right)^2 - 1^2\right] \\ 0 &= 6x^3y^4\left(2\sqrt{2}\,x\,y^2 - 1\right)\left(2\sqrt{2}\,x\,y^2 + 1\right)  \end{align*}

    Can you solve the equation now?
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    Re: Last question for now - Complete the factorization

    so I just divide it?
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    Re: Last question for now - Complete the factorization

    I think I am even more confused .
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    Re: Last question for now - Complete the factorization

    Quote Originally Posted by bashemgud View Post
    I think I am even more confused .
    So am I. When asking a question, it helps to use some notation that can be understood, or give some explanation of what you wanted help doing...
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    Re: Last question for now - Complete the factorization

    Sorry, I am confused why the question has ( ) that are empty.
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    Re: Last question for now - Complete the factorization

    Quote Originally Posted by bashemgud View Post
    Sorry, I am confused why the question has ( ) that are empty.
    ( ... ) is the factor you're supposed to find if I interpret the problem correctly.
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    Re: Last question for now - Complete the factorization

    Quote Originally Posted by skeeter View Post
    ( ... ) is the factor you're supposed to find if I interpret the problem correctly.
    Assuming that is what it means (and it could really mean anything...)

    \displaystyle \begin{align*} -48x^5y^8 &= -6\cdot 8x^3x^2y^4y^4 \end{align*}

    What is left over when you take out \displaystyle \begin{align*} -6x^3y^4 \end{align*} as a factor?
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