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Math Help - quadratics

  1. #1
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    quadratics

    simple grade 11 math. i don't recall going over factoring quadratic equations though =S

    A rectangle has dimensions (12/(x+1)) and (6/(4-x)). Find the value(s) of x by factoring a quadratic equation.
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by xxlvh View Post
    simple grade 11 math. i don't recall going over factoring quadratic equations though =S

    A rectangle has dimensions (12/(x+1)) and (6/(4-x)). Find the value(s) of x by factoring a quadratic equation.
    i think there's something missing from the question. for some reason, it seems vague to me. we need some other conditions on how the two sides relate to each other, i think
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  3. #3
    Super Member angel.white's Avatar
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    Perhaps they give a total area or perimeter? Or perhaps it was supposed to be a square instead of a rectangle?
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    Whoops! I forgot to add, the perimeter is 14.
    Sorry about that!
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  5. #5
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    Great! Now that we have that, solve it!

    Think about the perimeter of a Rectangle?

    2*Dimension1 + 2*Dimension2 = Perimeter

    That's all there is to it. Now, set it up and show us what you get.
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