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anonymous

  • one year ago

What is the simplified form of 3 over 2x minus 5 + 21 over 8 x squared minus 14x minus 15 ?

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  1. anonymous
    • one year ago
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    @ganeshie8

  2. anonymous
    • one year ago
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    |dw:1436984714721:dw|

  3. anonymous
    • one year ago
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    @jonathonneely33 @RosieF

  4. anonymous
    • one year ago
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    I think thw answer is 6(x+1)/2x-5(4x+3)

  5. welshfella
    • one year ago
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    |dw:1436985315792:dw|

  6. anonymous
    • one year ago
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    I agree

  7. welshfella
    • one year ago
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    oops that 3 in first fraction not 8

  8. welshfella
    • one year ago
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    |dw:1436985521026:dw|

  9. welshfella
    • one year ago
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    now simplify the top part

  10. anonymous
    • one year ago
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    12x+30

  11. welshfella
    • one year ago
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    yep so that's (12x + 30) / (2x -5)(4x+3)

  12. anonymous
    • one year ago
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    so is it 6(2x+5)/2x-5(4x+3)

  13. welshfella
    • one year ago
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    oh yes you can factor the top , of course

  14. anonymous
    • one year ago
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    :) Thanks!

  15. anonymous
    • one year ago
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    What is the simplified form of 2 over x squared plus x minus 1 over x ?

  16. anonymous
    • one year ago
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    I got x-1/x(x+1)

  17. anonymous
    • one year ago
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    |dw:1436985928544:dw|

  18. welshfella
    • one year ago
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    |dw:1436985938537:dw|

  19. anonymous
    • one year ago
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    Yes

  20. welshfella
    • one year ago
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    LCM is x(x^2 + 1)

  21. anonymous
    • one year ago
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    uh-huh I got that too

  22. welshfella
    • one year ago
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    |dw:1436986022735:dw|

  23. anonymous
    • one year ago
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    so you'd get 1x^2+1

  24. welshfella
    • one year ago
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    |dw:1436986170864:dw|

  25. welshfella
    • one year ago
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    - (x - 1)^2 / (x(x^2 + 1))

  26. anonymous
    • one year ago
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    so 1-x or x-1

  27. anonymous
    • one year ago
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    I think it's x-1/x(x+1) maybe?

  28. welshfella
    • one year ago
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    no you cant simplify any further

  29. welshfella
    • one year ago
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    x^2 + 1 has no factors

  30. anonymous
    • one year ago
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    ok but my answer choices are a. x-1/x(x+1) b. x-1/x(x+1) c. 2-x/x(x+1)

  31. welshfella
    • one year ago
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    x^2 - 1 has but not with '+'

  32. anonymous
    • one year ago
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    So A?

  33. welshfella
    • one year ago
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    oh i've written x^2 + 1 instead of x^2 + x - i misread the question

  34. anonymous
    • one year ago
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    haha it's okay :D

  35. anonymous
    • one year ago
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    What is the simplified form of 1 over x-cubed all over 3 over x squared ?

  36. welshfella
    • one year ago
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    |dw:1436986600662:dw|

  37. welshfella
    • one year ago
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    is that right for the second one?

  38. anonymous
    • one year ago
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    Yes!

  39. anonymous
    • one year ago
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    What is the simplified form of 1 over x-cubed all over 3 over x squared ?

  40. anonymous
    • one year ago
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    For this one, I got x/3

  41. welshfella
    • one year ago
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    ok 2/ x(1 + x) - 1/x = 2 - (1 + x) / x(1 + x) = (1 - x) / x(1 + x)

  42. anonymous
    • one year ago
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    Ok:) Thanks!

  43. welshfella
    • one year ago
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    yw

  44. anonymous
    • one year ago
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    Was I right for the last question?

  45. welshfella
    • one year ago
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    |dw:1436987181448:dw|

  46. welshfella
    • one year ago
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    |dw:1436987321899:dw|

  47. welshfella
    • one year ago
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    to divide a fraction you invert the divisor then multiply

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