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TheYankee

  • one year ago

Divide and Simplify this rational expression. MEDAL

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  1. TheYankee
    • one year ago
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  2. Nnesha
    • one year ago
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    factor (a^2-a) = ?

  3. Nnesha
    • one year ago
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    and change division to multiplication ( multiply top with the reciprocal of the divisor ) \[\large\rm \frac{ a }{ b } \div \frac{ c }{ d } = \frac{ a }{ b } \times \frac{ d }{ c}\]

  4. TheYankee
    • one year ago
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    I have a really, really hard time with the parentheses in these problems. Do they change operations at all?

  5. Nnesha
    • one year ago
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    parentheses those are factor form of quadratic equation

  6. TheYankee
    • one year ago
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    I know, but once it is factored, I have a problem using them in division problems. I'm working on the problem and I'm almost done. Would you check my answer when I'm done?

  7. Nnesha
    • one year ago
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    sure!

  8. TheYankee
    • one year ago
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    Is this it?

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  9. TheYankee
    • one year ago
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    (I'm so bad at these ^^;)

  10. Nnesha
    • one year ago
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    how did you get that ?

  11. Nnesha
    • one year ago
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    :-)

  12. TheYankee
    • one year ago
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    After switching around everything I had (A-4)(a+3)/2(a=3) times (a+3)(a-1)/2(a-4). I cross multiplied 2(a-4) and (a-4)(a=3) to get (a+3)^2 and cross multiplied the other values to get 2(a-1) Then distributed.

  13. Nnesha
    • one year ago
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    so (a-4)(a+3) = (a+3)^2 ?

  14. TheYankee
    • one year ago
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    That's what I got when I multiplied it by 2(a-4) The a-4s cancelled out and that left 2 and a+3. I suppose it could have been 2(a+3,) though.

  15. Nnesha
    • one year ago
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    mhm i'm confused

  16. Nnesha
    • one year ago
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    i just want to know how u got (a+3)^2 ?? :-)

  17. Nnesha
    • one year ago
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    yep right (a-4)s cancels out :-)

  18. TheYankee
    • one year ago
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    I multiplied the value (a-4)(a+3) by 2(a-4). When the a-4s cancelled, I was left with 2 on one side and a+3 on the other. So, re-evaluating, it wouldn't be (a+3)^2 it would be 2(a+3)

  19. TheYankee
    • one year ago
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    I'm might also make a few errors as I'm under a bit of pressure. My test it timing out :(

  20. TheYankee
    • one year ago
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    *is

  21. Nnesha
    • one year ago
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    mhm you got it right *i guess* :|

  22. TheYankee
    • one year ago
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    So this is the correct answer?

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  23. Nnesha
    • one year ago
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    http://prntscr.com/7d52sr :-(

  24. Nnesha
    • one year ago
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    i'm sorry but i'm not allowed to help you 'n ur test that is for you!

  25. TheYankee
    • one year ago
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    I'm not cheating :( I'm just trying to confirm what I think is right before my test times out. I am trying!

  26. TheYankee
    • one year ago
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    It's an openbook.

  27. TheYankee
    • one year ago
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    If it wasn't open book, I wouldn't ask :( I just have a really hard time understanding.

  28. TheYankee
    • one year ago
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    But if you don't agree, I understand. Thanks anyway :(

  29. Nnesha
    • one year ago
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    openbook ) it's not gonna give u the direct answer i'm pretty sure example that is on ur notebook are different from the test

  30. Nnesha
    • one year ago
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    :-) gO_Od luck!

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