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Math Help - please help with rational equation

  1. #1
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    please help with rational equation

    subtract the following rational expression

    b)3x-1/x^2+4x+3 - x+6/2x^2+7x+1
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  2. #2
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    are you sure thats the correct equation?

    is that denominator of  2x^2 + 7x + 1 correct?
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  3. #3
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    Quote Originally Posted by iz1hp View Post
    are you sure thats the correct equation?

    is that denominator of  2x^2 + 7x + 1 correct?
    yes it is right and seems quite odd because it seems unfactorable.
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  4. #4
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    lol it is unfactorable.
    are you sure its not subtract the following irrational expression?


    <br />
x = \frac{-b \pm \sqrt{b^2 -4ac}}{2a}<br />

    <br />
x= \frac{-7 \pm \sqrt{7^2 - 4(2)(1)}}{2(2)}<br />

    <br />
x = \frac{-7 \pm \sqrt{41}}{4}<br />

    which is irrational
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  5. #5
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    Quote Originally Posted by iz1hp View Post
    lol it is unfactorable.
    are you sure its not subtract the following irrational expression?


    <br />
x = \frac{-b \pm \sqrt{b^2 -4ac}}{2a}<br />

    <br />
x= \frac{-7 \pm \sqrt{7^2 - 4(2)(1)}}{2(2)}<br />

    <br />
x = \frac{-7 \pm \sqrt{41}}{4}<br />

    which is irrational
    The questions description is simplify and state restrictions on the variable, the activiy title being subtracting rational expressions, I wrote the question identical to the one from the book
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