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Brandon Lam

  • 5 years ago

Dividing Radical ∛(a^3+b^3 )/∛(a+b)

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  1. lokisan
    • 5 years ago
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    Radicals are just expressions for powers, so you can use power laws to turn your orginal expression into:\[\left( \frac{a^3+b^3}{a+b} \right)^{1/3}\]

  2. lokisan
    • 5 years ago
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    You then use polynomial or synthetic division to divide that expression.

  3. lokisan
    • 5 years ago
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    The fraction is\[a^2-ab+b^2\]so your expression will become,\[\sqrt[3]{a^2-ab+b^2}\]

  4. Brandon Lam
    • 5 years ago
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    How you division

  5. lokisan
    • 5 years ago
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    Hmm, it's a bit difficult to explain on this site. I'll see if I can find a link with a clip.

  6. lokisan
    • 5 years ago
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    Here you go: http://www.khanacademy.org/video/polynomial-division?playlist=ck12.org%20Algebra%201%20Examples

  7. lokisan
    • 5 years ago
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    It's not a hard thing to do - you'll pick it up quickly.

  8. Brandon Lam
    • 5 years ago
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    can you tye wgat number I need division

  9. lokisan
    • 5 years ago
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    Sorry, I'm sure what you want?

  10. lokisan
    • 5 years ago
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    You still want me to do the division?

  11. Brandon Lam
    • 5 years ago
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    division like this: a+b:〖 a〗^3+ b^3

  12. Brandon Lam
    • 5 years ago
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    you just write eqution and I know how to division

  13. lokisan
    • 5 years ago
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    okay

  14. Brandon Lam
    • 5 years ago
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    I just want to know what number division by what number

  15. lokisan
    • 5 years ago
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    a+b | a^3 + b^3

  16. lokisan
    • 5 years ago
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    The denominator appears on the LHS, the numerator on the RHS.

  17. Brandon Lam
    • 5 years ago
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    let my try,thank

  18. lokisan
    • 5 years ago
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    You're welcome

  19. Khaledyahya
    • 5 years ago
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    Can any of u help me how to draw the graph

  20. lokisan
    • 5 years ago
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    The graph of what?

  21. Brandon Lam
    • 5 years ago
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    thank, I can solve now

  22. lokisan
    • 5 years ago
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    No probs. Become a fan :)

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