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lindseyharrison

  • 3 years ago

x^2 - 1/9x all over x^2 + 2x + 1/ 3x^2

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  1. lindseyharrison
    • 3 years ago
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    |dw:1346439066411:dw|

  2. moser90
    • 3 years ago
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    start by factoring

  3. lindseyharrison
    • 3 years ago
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    I"m running out of time and stressing out!

  4. ParthKohli
    • 3 years ago
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    Then you should use WolframAlpha. http://wolframalpha.com

  5. moser90
    • 3 years ago
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    can't just give you the answer sorry you have to at least try

  6. CliffSedge
    • 3 years ago
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    I'd actually recommend using\[\frac{\frac{a}{b}}{\frac{c}{d}} = \frac{ad}{bc}\] first, and then factoring.

  7. moser90
    • 3 years ago
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    I forgot that step thanks now I know an easier why

  8. CliffSedge
    • 3 years ago
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    But it doesn't really matter, commutative property and whatnot..

  9. radar
    • 3 years ago
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    |dw:1346439505981:dw|

  10. radar
    • 3 years ago
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    Start factoring and canceling.

  11. radar
    • 3 years ago
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    If you will do the numerator, I will do the denominator.

  12. CliffSedge
    • 3 years ago
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    I got a numerator of higher degree than denominator, so I converted it to a mixed number. I don't think that's necessary though; usually with rational expressions, leaving everything in factored form as improper fractions is more convenient.

  13. radar
    • 3 years ago
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    @lindseyharrison , the ball is in your court.

  14. lindseyharrison
    • 3 years ago
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    5x^4/4y^3

  15. radar
    • 3 years ago
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    |dw:1346439990509:dw|

  16. radar
    • 3 years ago
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    |dw:1346440061907:dw|

  17. radar
    • 3 years ago
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    |dw:1346440122163:dw| What do you have left?

  18. radar
    • 3 years ago
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    |dw:1346440255206:dw|

  19. lindseyharrison
    • 3 years ago
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    a) 4y^3/5x^4 b) 4y^4/5x^3 c) 5x^4/4y^3 d) 5x^3/4y^4

  20. lindseyharrison
    • 3 years ago
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    those are my options

  21. radar
    • 3 years ago
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    You are looking at the wrong answers. There is not a y in you problem. Please look at the problem you have entered in the problem box!

  22. lindseyharrison
    • 3 years ago
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    well that explains a lot lol

  23. lindseyharrison
    • 3 years ago
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    x(x+1/3(x-1) 3x(x+1)/(x-1) x(x-1)/x(x+1) (x-1)/3x(x+1)

  24. lindseyharrison
    • 3 years ago
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    So it's C!

  25. radar
    • 3 years ago
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    I don't agree with C, but then again I don't agree with a lot of things. You will notice that C can be further simplified by a division of x to both numerator and denominator.

  26. radar
    • 3 years ago
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    Are you sure that you copied D. correctly?

  27. CliffSedge
    • 3 years ago
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    Yeah, there's a typo in there.

  28. radar
    • 3 years ago
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    I think you are right @CliffSedge

  29. radar
    • 3 years ago
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    I really don't see a correct answer lol.

  30. radar
    • 3 years ago
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    Or on the other hand there may be an error in the solution???

  31. radar
    • 3 years ago
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    If D were: x(x-1)/3(x+1) It would be more acceptable.

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