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Math Help - inequality problem =.=

  1. #1
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    inequality problem =.=

    ok so my teacher gave me this problem:

    x+1/x^2-x-2 > 0

    actually the inequality sign is "greater than or equal to" i just dont know how to type it in


    so how do i solve this you guys?
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  2. #2
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    Quote Originally Posted by behindDkeys View Post
    ok so my teacher gave me this problem:

    x+1/x^2-x-2 > 0

    actually the inequality sign is "greater than or equal to" i just dont know how to type it in


    so how do i solve this you guys?
    Hi

    Do you mean \frac{x+1}{x^2-x-2} \geq 0 ?

    If so note that x^2-x-2 = (x-2)(x+1)
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  3. #3
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    Quote Originally Posted by running-gag View Post
    Hi

    Do you mean \frac{x+1}{x^2-x-2} \geq 0 ?

    If so note that x^2-x-2 = (x-2)(x+1)

    yes yes its that!!!!

    oh so i can factor it out i forgot about factoring

    hmmm then i can cancel out x+1 which leaves me with x-2 is greater than or equal to 0 right?


    whats next to that?

    coz i dont have y
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  4. #4
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    Quote Originally Posted by behindDkeys View Post
    hmmm then i can cancel out x+1 which leaves me with x-2 is greater than or equal to 0 right?
    Yes but 2 is a forbidden value because makes the denominator equal to 0
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  5. #5
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    Quote Originally Posted by running-gag View Post
    Yes but 2 is a forbidden value because makes the denominator equal to 0

    so then i put it to the other side making it x>2?
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  6. #6
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    Quote Originally Posted by behindDkeys View Post
    so then i put it to the other side making it x>2?
    Yes
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