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Math Help - simple algebra

  1. #1
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    simple algebra

    I forgot how to solve y^2(5-2y), to.give my answer in surd form. I thought to use -b+/-sqrt(b^2-4ac)/2a but I got an imaginary number and I don't think I can use completing the square method either..please help thanks a lot!
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  2. #2
    Forum Admin topsquark's Avatar
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    Re: simple algebra

    Quote Originally Posted by Tutu View Post
    I forgot how to solve y^2(5-2y), to.give my answer in surd form. I thought to use -b+/-sqrt(b^2-4ac)/2a but I got an imaginary number and I don't think I can use completing the square method either..please help thanks a lot!
    What do you mean by "solved?" y^2(5 - 2y) is not an equation.

    Taking a leap of faith I'm going to assume that you mean to solve
    y^2(5 - 2y) = 0

    In this case we know that y^2 = 0 or 5 - 2y = 0

    Now go from there.

    -Dan
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  3. #3
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    Re: simple algebra

    Sorry for the not being detailed, the question asked to solve for the value of y. Sorry and thanks!
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  4. #4
    Forum Admin topsquark's Avatar
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    Re: simple algebra

    Quote Originally Posted by Tutu View Post
    Sorry for the not being detailed, the question asked to solve for the value of y. Sorry and thanks!
    It happens. In the future make sure to write down the whole problem.

    Do you have any questions about my previous post?

    -Dan
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