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Loujoelou

  • 2 years ago

Last Algebra II question drawn below

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  1. Loujoelou
    • 2 years ago
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    |dw:1354499996745:dw|

  2. tejasree
    • 2 years ago
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    Add like terms that are in the bottom first

  3. Loujoelou
    • 2 years ago
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    I know once you subtract below and do the top it becomes 3i/-2-i

  4. Loujoelou
    • 2 years ago
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    and then multiply it by its conjugate +2+i right on both sides?

  5. tejasree
    • 2 years ago
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    then multiply the top and the bottom with the conjugate of -2-i, the conjugate is -2+i

  6. Loujoelou
    • 2 years ago
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    oh okay that's where I was wrong

  7. tejasree
    • 2 years ago
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    You just change the sign that is before the i/square root

  8. Loujoelou
    • 2 years ago
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    k so once I do the bottom (-2-i)(-2+i) it becomes +3 and the top becomes -3-6i, so it's -3-6i/3 right?

  9. tejasree
    • 2 years ago
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    hmmm......i dont have a calc. or a pen wiht me right now! I guess you are correct! You may wnat to simplify it even more

  10. tejasree
    • 2 years ago
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    3 goes into -3-6i = the final answer is -1 - 2i

  11. Loujoelou
    • 2 years ago
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    thx :) I mean I would simplify more but the answer is not simplified on my choices so yep thx a ton for helping! :)

  12. tejasree
    • 2 years ago
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    no problem!!! :)

  13. Loujoelou
    • 2 years ago
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    oh hey could you help me with one more problem I need to double-check?

  14. tejasree
    • 2 years ago
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    sure I will if I can!! :)

  15. Loujoelou
    • 2 years ago
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    |dw:1354500581181:dw|

  16. tejasree
    • 2 years ago
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    \[(x ^{4/5})^{3/7}\]

  17. tejasree
    • 2 years ago
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    I am guessing you multiply both exponents! (4/5)(3/7)

  18. Loujoelou
    • 2 years ago
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    k that's what I did , just wanted to make sure thx :)

  19. tejasree
    • 2 years ago
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    Good Job! :)

  20. Minneemse
    • 2 years ago
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    can you help me? please!

  21. Minneemse
    • 2 years ago
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    tejasree?

  22. tejasree
    • 2 years ago
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    I am looking at your question! :)

  23. Minneemse
    • 2 years ago
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    thank you thank you thank you!!!!

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